Answer:
A score of 62 is not within one standard deviation of the mean.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Mean score of 54 and a standard deviation of 6.
This means that [tex]\mu = 54, \sigma = 6[/tex]
Calculate to see if a score of 62 is within one standard deviation of the mean.
Is Z between -1 and 1 when X = 62?
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{62 - 54}{6}[/tex]
[tex]Z = 1.33[/tex]
So a score of 62 is not within one standard deviation of the mean.
1/9 ÷5/4 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
0.8888888888
Step-by-step explanation:
that decimal just convert it to a fractoin
After dinner, Mirna had a second serving of her chocolate bar, eating 3
more pieces. Which equation shows how much she has left of the
whole candy bar after this second serving ?
A.) 5/8 - 3/8 = 2/8
B.) 8/8 - 3/8 = 5/8
C.) 8/8 - 5/8 = 3/8
D.) 3/8 - 2/8 = 1/8
The answer is c because 8 - 5 is 3.
Explain why the equations X - 13 = 4 and 13 - X = 4 do NOT have the same solution.
Answer:
they have different answers
Step-by-step explanation:
X - 13 = 4 and 13 - X = 4
for x- 13 = 4
x=4+13=17
x=17
for 13 - x = 4
13-4-x=0
9-x=0
9=x
x=9
A car rental agency advertised renting. a car for $24.95 per day and $0.27 per mile. If Brad rents this car for 4 days, how many whole miles can he drive on a $200 budget?
Answer:
Around 370 when rounded
Step-by-step explanation:
ok so we know that for one day rental cost 24.95 and 0.27 per mile.
Brad has a budget of 200 and wants to rent a car for 4 days and wants to know how many miles he can drive with his budget.
First off you have to mulitply 24.95(which is how much the rental cost per day) by 4. 24.95 x 4=99.8 so out of his 200 dollars he now has 100 budget for miles.
Next we are going to divide the 100 dollars left out of the budget by the cost per mile which is 0.27. 100/0.27=370 when rounded.
Answer:
Step-by-step explanation:
Write 44% as a fraction in simplist form
Answer:
11/25
Step-by-step explanation:
Answer:
11/25
Step-by-step explanation:
44/100 → 22/50→ 11/25
what is the correct equation for the graph?
What is 6 minus 3 and 2/5
Answer:
2.6
I am pretty sure this is right.
PLEASE HELP! GIVING PONTS!
the sum of two numbers is 72 and their difference is 26. find two numbers?
9514 1404 393
Answer:
23, 49
Step-by-step explanation:
Let s represent the smaller of the two numbers. Then the larger is s+26, and the sum is ...
s + (s+26) = 72
2s = 72 -26
s = (72 -26)/2 = 23
Then the larger number is
s +26 = 49
The two numbers are 23 and 49.
_____
The reason we wrote the solution this way is to show you that the smaller number is half the difference between the given sum (72) and difference (26). This is the generic solution to a "sum and difference" problem. The smaller number is always half the difference of the give sum and difference. (Similarly, the larger is always half the sum of the given sum and difference.)
That is, the two numbers are always half the sum ± half the difference:
72/2 ± 26/2 = {36+13, 36-13} = {49, 23}
Explain your answer
Thank you so much !
Will give brainlst
Answer: A
Step-by-step explanation: Granite is nearly always massive , hard, and tough.
Which table represent a linear function. Picture attached and I will mark brainly
Answer:
Bottom right
Step-by-step explanation:
A linear function is a function that if ploted would be represented by a straight line. The only function out of the following 4 that follows this statement is the bottom right option.
Why do some people sleep with hair rollers
Answer:
to have their hair ready and curled the next day. and to not have it heated or chemical damaged bc it ruins ur hair :)
01 PARTA Write an equation for the line represented by the data in the table. Х y -3 11 0 5 2 1 1 5 -5 7 -9
Answer: I don't know what it means by "equation" but a coordnite plane
its -3,11 0,5 2,1 5,-5 7,-9
Step-by-step explanation:
Morgan’s books sold 660 bookmarks last year, in comparison to 528 bookmarks this year. What is the percent of decrease in the number of bookmarks sold annually
Answer:
A 20% decrease I believe
Step-by-step explanation:
So, you subtract 660-528 which is 132. You then divide that by 660 and you get 0.2 or 20%
I just learnt this in math today so I hope it helps you and I hope it's correct :>
Person A buys 12 cupcakes and 3 packs of chips for $16.50. Person B buys 6 cupcakes and 5 packs of chips for $13.50. Find the cost of each item.
Answer:
A cupcake costs $1 and a pack of chip costs $1.50
please help.................
Answer:
Is that thick line an equal or a minis sign? I cant see it.
How have you seen racism, protest, conflict, dehumanization play out in our current world?
paragraph plz
Answer:
i have seen a lot of racist people. let me tell you something that happened the other day when i was on here i found this kid posting racist things and calling blacks ugly. and he then started being mean to my friends and every year we celebrate black history month for rights rights and this is a good thing to do cause we all matter.#black lives matter
Step-by-step explanation:
ayuda la otra es otra y después de la y
Answer:
es igual a 30
Step-by-step explanation:
x=10 y Y=5
por tanto sería
10+10+5+5=30
please help!!!!!!
answer with numbers next to it so Ik which answer it goes to
The sum of the digits in a two-digit number is 16. The digit in the tens place is 2 more than the digit in the
ones place. The system of linear equations shown below represents this situation, where x is the digit in
the tens place and y is the digit in the ones place. Solve the system to find the two-digit number.
(x + y = 16
Ix-y=2
The two digit number is
Answer:
kapag napag aralan mo yan beh malalaman mo yung sagot kapit lang tiwala ka lang pag aralan mo tignan mo malalaman mo yung sagot jan wag kang magagalit dahil totoo yung sinbi ko cge keep safe and god bless..
If C = x2 + 7 and D = 3x2 - 4x + 3, find an expression that equals 3C + 3D in standard form.
Answer:
The new expression is: 12 x^2 - 12 x+ 30
Step-by-step explanation:
if C = x^2 + 7
and
D = 3 x^2 - 4 x + 3
Then, 3 C + 3 D can be obtained via:
3 ( x^2 + 7 ) + 3 ( 3 x^2 - 4 x + 3 ) = 3 x^2 + 21 + 9 x^2 - 12 x + 9 =
= 12 x^2 - 12 x+ 30
All 30 pupils in a class took part in a sponsored spell to raise money for charity. The pupils were expected to get an average of 14 spellings cprescr each. The average amount of sponsorship was 20 pounds for each correct spelling. How much money would the class expect to raise for charity altogether? Give answer in pounds
Answer: £84
Step-by-step explanation:
The number of pupils in the class is 30, and the average number of correct spellings for each pupil is 14.
The total expected correct spellings is 30 x 14 = 420 spellings.
The average sponsorship for each correct spelling is 20p which = £0.20.
Therefore, the number of pounds the class is expected to raise for charity is 420 x 0.20 = £84.
Number of pounds the class is expected to raise for charity is 8400 pounds.
What is multiplication?Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.
Number of pupils in the class = 30
Average number of correct spellings for each pupil = 14.
The total expected correct spellings is 30 x 14 = 420 spellings.
The average sponsorship for each correct spelling is 20 pounds
The number of pounds the class is expected to raise for charity is 420 x 20 = 8400 pounds
Thus, number of pounds the class is expected to raise for charity is 8400 pounds.
Find out more information about multiplication here
https://brainly.com/question/14059007
#SPJ3
the width of a rectangle is 1/4 it’s length. the perimeter of the rectangle is 600ft. what is the length, in feet, of the rectangle?
Answer:
let length be l and breadth 1/4×l
perimeter of the rectangle =600ft
2(l+1/4×l)=600ft
(4l+l)/4=600/2
5l=300×4
l=1200/5=240ft
Step-by-step explanation:
240ft is the length of a rectangular.
4 A numerical expression is shown below. Evaluate the expression.
help please explain too
Answer:
H
Step-by-step explanation:
Dufrane buys a new pair of shoes that costs him $186 where the sales tax rate is 7.3%.
What is the total amount he paid after taxes? Round to two decimal places.
Answer:
$199.58
Step-by-step explanation:
$186 x 0.0730 = 13.578
13.578 + 186 = $199.57
Can someone HELP ME please!!?
Answer:
Option 1
Step-by-step explanation:
The manager of a supermarket records the waiting times of 100 customers.
He wishes to calculate an estimate for the mean waiting time.
He draws this table.
Waiting Time
Number of
Midpoint (x)
fx
(minutes)
customers (0)
0-
0.5
5
2.5
1 -
1.5
28
42
2 -
2.5
32
80
3.5
26
91
3-
4-5
4.5
9
40.5
100
256
a) Complete the table.
b) Calculate an estimate for the mean. (I JUST NEED HELP ON B)
Answer:
2.56
Step-by-step explanation:
you add all the columns up to get an answer of 256 and divide it by 100=2.56
Answer:
2.4
Step-by-step explanation:
The sale price of every item in a store is 85% of its usual price the usual price of backpack is $18 what is its sale price
Answer: the sale price is $2.70
Step-by-step explanation:
Discount = Original Price x Discount %/100
Discount = 18 × 85/100
Discount = 18 x 0.85
You save = $15.30
Final Price = Original Price - Discount
Final Price = 18 - 15.3
Final Price = $2.70
please help me asap
Answer:
2.yes 3.no
Step-by-step explanation:
Brayden was out at a restaurant for dinner when the bill came. His dinner came to $22. After adding in a tip, before tax, he paid $28.60. Find the percent tip.
Answer:
Step-by-step explanation:
Your answer
Price = 22$
TIP IN PRICE = 28.6$
Tip in discount = 30%
Mark it as Brainlist answer. Follow me.
Answer
Step-by-step explanation:
