one of these students is chosen at random. what is the probability of picking a student who scored above 65
Answer:
7/18
Step-by-step explanation:
7 students received a score greater than 65, out of a total of 18 students
The probability of picking a student who scored above 65 is 1/3 when one of these students is chosen at random.
To calculate the probability of picking a student who scored above 65, we need to determine the number of students who scored above 65 and divide it by the total number of students.
Looking at the given marks:
46, 65, 54, 57, 62, 73, 73, 47, 69, 48, 63, 68, 55, 48, 58, 71, 76, 70
We can see that the marks above 65 are: 73, 73, 69, 68, 76, 70 (a total of 6 marks).
Now, let's calculate the probability:
Probability = Number of favorable outcomes / Total number of outcomes
Number of favorable outcomes (students who scored above 65) = 6
Total number of outcomes (total number of students) = 18
Probability = 6 / 18
Simplifying the fraction:
Probability = 1 / 3
Therefore, the probability of picking a student who scored above 65 is 1/3.
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The complete question is :
Here are the marks 18 students got in a Maths test: 46, 65, 54, 57, 62, 73, 73, 47, 69, 48, 63, 68, 55, 48, 58, 71, 76, 70. a) Show this information in an ordered stem and leaf diagram: 5 | 4 4 7 8 8 6 | 2 3 5 8 7 | 0 1 3 3 8 | 9 | 6 b) One of these students is chosen at random: What is the probability of picking a student who scored above 65?
Directions:
Using the digits 1 to 6, at most one time each, fill in the
boxes so that top two equations are equal and the
bottom equation has the greatest value.
You can move the numbers around on the graph to
help.
First Attempt:
column 1
column 2
neww frienns? girls rr boys 15+
yes
but actually
n o
Did I label this triangle correctly?
Answer:
Yes
Step-by-step explanation:
you labelled it correctly. angle a is across from side a, and vice versa. nice job!! :)
Answer: Yes
Step-by-step explanation:
The angle A should be across from side a. Angle B should be across from side b. And same for C. Good job.
What two numbers multiply to give you -64 and add up to 0?
Answer:
-8*8
Step-by-step explanation:
-8*8=64
8-8=0
Martina is currently 14 years older than her cousin Joey. In 3 years she will be 3 times as old as Joey. Use this
Information to answer the following questions
Answer:
Step-by-step explanation:
Your answer
Assume Joey is x, Martina is y
According to 1st condition.
Eq 1. Y = x + 14
According to 2nd condition
Eq2. (Y+3)= 3(x+3)
Put value of y in eq 2,,,,,,,, x = 4
Put value of x in eq 1. ,,,,,,,,, y = 18
Mark it as Brainlist answer. Follow me.
Evaluate -29 - X
when x = 6
Answer:
wouldn't that just be -35?
Step-by-step explanation:
you just have to do -29-6
Miranda has 3 kites. Each kite needs 4 2/3 yards of string. How much string does Miranda need for all 3 kites?
18
14
Answer:
14 yards of string.
Step-by-step explanation:
Since each kite needs 4 2/3 yards of string and there are 3 kites, we have to multiply 4 2/3 by 3.
So, 4 2/3 × 3 = 14.
If someone bikes 1.5 miles in 10 minutes how far can they bike in 1.5 hours.
Answer:
13.5
Step-by-step explanation:
Part A- solve for x
Part B- solve for y
Part C- find the perimeter
(photo included)
What is the equation of the line shown below?
A. Y=(4/5)x-1
B. Y=-(4/5)x-1
C. Y=(5/4)x-1
D. Y=-(5/4)x-1
Answer:
B
Step-by-step explanation:0
The negative in front of the -(4/5), means you have to move four spaces back but move five up
hopes this helps~
Write the slope intercept form of the equation of each line
Answer:
The slope is 1/4 so the slope intercept form is y=1/4+3
Step-by-step explanation:
To find the slope the easiest way from looking at a graph is just to find the rise over run. From looking at the graph we can see that the next point from 0,3 is 4,4. The y here is increased by 1, which means the rise is 1. The x is increased by 4 so the run is 4. From putting rise (1) over run (4) the slope is 1/4. The formula for slope intercept is y=mx+b. m is slope so we substitue that for 1/4 so now we have y=1/4x+b. Then the b is the y intercept, or, at what point the line crosses the y line. Which in this case is 0,3 so the y intercept would be 3 because that is what height it crosses the y line.
2. Write the expression as an exponent.
7 x 7 x 7 x 7 x 7 x 7 x 7
Answer:
7^7
7x7x7x7x7x7x7= 823543
Answer:
7^7
Step-by-step explanation:
7 x 7 x 7 x 7 x 7 x 7 x 7=7^7
In a bouquet of flowers, there are 3 daises and 14 roses, write the ratio of daises to roses in 3 different ways.
Answer:
3/14, 3:14, and 3 to 14 :]
Step-by-step explanation:
If the side of every square is 2 centimeters, how many centimeters is the circumfence of the figure?
*if you cant see the photo, click on it*
Answer:
76 cmStep-by-step explanation:
[tex]|FE| = |CB| = 4\cdot2=8\,cm\\\\|ED|=|DC|= \sqrt{(3\cdot2)^2+(4\cdot2)^2}= \sqrt{6^2+8^2}=\sqrt{100}=10\,cm\\\\|FA|=|AB|= \sqrt{(6\cdot2)^2+(8\cdot2)^2}= \sqrt{144+256}=\sqrt{400}=20\,cm\\\\\\Circumference = FE+ED+DC+CA+AB+FA\\\\Circumference =8+10+10+8+20+20=76\,cm[/tex]
Write an equation based on the following table
Jessica is doing an obstacle course in gym class. First, she runs 100 feet and jumps over a hurdle. Then, she crawls through a 20-foot tunnel. Finally, she dribbles a soccer ball 60 feet to the finish line. How many yards long is the obstacle course
Answer:
60 yards
Step-by-step explanation:
100 + 20 + 60= 180 ft
180 feet contributed into yards is 60.
Answer:
60
Step-by-step explanation:
help me please I am so confused
explain what the Diameter is and how is the radius related to it.
What can the radius and Diameter help us find?
Answer:
The diameter is any straight line that passes through the center of the circle, which endpoints can lie on. The radius is half the diameter. They help us find the circumference of a circle
Answer:
The diameter is the length of the line through the center that touches two points on the edge of the circle. It is related to the radius because whatever the diameter is is double what the radius is. In differential geometry, the diameter is an important global Riemannian invariant.
Step-by-step explanation:
Ahab wants to buy a mule that is 5 % off. The original price is $ 178. What is amount of discount
Answer:
the discount is $8.90
Step-by-step explanation:
178 • .05 = $8.90 off of the original price
Solve the system using substitution.
x + 2y = -6
6x + 2y = 4
([?], [ ]
Answer:
(2,-4)
Step-by-step explanation:
2y=-x-6 2+2y=-6
y=-1/2x-3 2y=-8
6x+2(-1/2x-3)=4
6x-x-6=4
5x=10
x=2
y=-4
I fell asleep in class and Im failing, pleaseeee help!
[tex]\huge\fbox\pink{Answer}[/tex]
6.) ∆DAY
7.) SAS
Reason:- SN corresponds to DY UN corresponds to AYhence, ∆SUN is congruent to ∆DAY
SN = DY UN = AY<N = <Yhence, both the triangles are congruent due to SAS
I hope this helps
Decrease £13.20 by 15%
With an explanation (working out) plzzzz
Answer:
£11.22
Step-by-step explanation:
100% = £13.20
50% = £6.60
10% = £1.32
5% = £0.66
so you would add 10% and 5% together which gives you 15% and 15% is £1.98
and then you could to £13.20 - £1.98 which equals to £11.22
You're given two side lengths of 10 centimeters and 8 centimeters. The angle between the sides measures 40°. How many triangles can you constructusing these measurements?
Answer: The 40° angle and the fixed side lengths of 10 cm and 8 cm uniquely determine the locations of Points A and B. Thus, you can construct only one triangle using these measurements.
Step-by-step explanation:
Hope it helps mark me brainliest.
1. Ames earns an annual salary of $265,000. If income tax is 6%, what is the amount of income tax in dollars and cents that the doctor must pay?
O A. $13,250
O B. $15,900
O C. $18,400
O D. $21,860
Answer:
B. $15,900
Step-by-step explanation:
$265,000 x .06 = $15,900
I have 4 triangles to make a trapezium. What is the area of the Trapezium
Please answer
Answer:
Area of Trapezium
Step-by-step explanation:
1/2 ( a + b ) h
hope it helps!
Emily, Andrew, and Isaiah had a challenge to see who could bike the farthest in one day. Emily biked 13 miles, Andrew biked 4 times as many miles as Isaiah and Isaiah biked 4 times as many miles as Emily. How many miles did Andrew bike?
Answer:
Andrew biked 208 miles.
Andrew biked 208 miles.
What is Multiplication?Multiplication in mathematics is the method of finding the product of two numbers. It is usually denoted by a × b.
For two numbers a and b, a × b is defined as either 'a' is added repeatedly upto 'b' times or 'b' is added repeatedly upto 'a' times.
Given that,
Number of miles Emily biked = 13 miles
Number of miles Isaiah biked = 4 times as many miles as Emily
= 4 × 13
= 52 miles
Number of miles Andrew biked = 4 times as many miles as Isaiah
= 4 × 52
= 208 miles
Hence, Andrew biked the farthest which is equal to 208 miles.
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4 2/4 - 1 3/4 (simplify it)
Answer:
2 + (3/4)
Step-by-step explanation:
4 + (2/4) - (1 + (3/4))
3 + (2/4) - (3/4)
3 - (1/4)
2 + (3/4)
Answer:
2 and 3/4
Step-by-step explanation:
well start with 4 2/4 and turn it into 18/4 then take 1 3/4 and turn it into 7/4
18/4-7/4=11/4
11/4 is equal to 2 3/4
HELP ME PLZZZZZZZZ
What is factoring by GCF?
(Please explain in your own words)
Answer:
GCF is the largest factor that all the terms have in common.
Step-by-step explanation:
I NEED SOME HELP AGAIN PLS
Answer:
The y-intercept is (26, 0)
Step-by-step explanation:
The Y intercept is the point at which the line crosses the y-axis, or when x is equal to zero. Here when x = 0, y = 26. So the y-intercept is (26, 0). They want to trick you into choosing the slope is -1/6, but that is wrong because id you look at the x-axis it is not going by 1's.
