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marishachu [46]
3 years ago
14

What conclusion can be drawn from the data in the histogram? Histograms | CK-12 Foundation Question 5 options: Most people sleep

5 hours each night The least amount of people sleep 12 hours each night Seven people sleep 7 hours each night Most people sleep 7 hours each night
Mathematics
1 answer:
Jobisdone [24]3 years ago
7 0

Answer:

I dont know

Step-by-step explanation:

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PLEASE HELP ME WILL MARK BRAINLIEST
stich3 [128]

Answer:

PLEASE HELP ME WILL MARK BRAINLIEST

Step-by-step explanation:

5 0
3 years ago
The average speed of a car driving down freeway is 70mph with a standard deviation of 5mph. Thid speed is normally distributed.
ikadub [295]

Answer:

0.081,0.2621,0.645,0.919

Step-by-step explanation:

Let X be the average speed of a car driving down freeway

Given that X is normal with mean as 70mph with a standard deviation of 5mph.

To convert to Z score we do

Z =\frac{x-70}{5}

a)  the probability that a randomly selected car is driving more than 77mph

=P(X>77)\\=P(Z>1.4)\\=0.081

b) probability that a randomly selected car is driving between 65 and 69 mph

= P(-1

c) the probability that a randonly selected car is driving between 67 and 77mph

=P(-0.6

d) the probability that a randomly selected car is driving less than 77mph

=P(Z

5 0
3 years ago
I tried and found that it is 2 am i correct? if not what is the correct answer and how do u know please :)
Mumz [18]
Nope, the answer is three. Mean means the average of all the numbers. So all you have to do is to add the numbers up and divide the the amount of numbers with your sum.
6 0
3 years ago
Angela drew 9 rhombuses and 6 trapezoids. She wants to find q, the total number of angles in her quadrilaterals. Explain how Ang
Bingel [31]
I'm pretty sure it's
q= 4(9)+4(6)
This is true, since both are quadrilaterals, so they have 4 sides and therefore 4 angles. There are 9 rhombuses, so each has 4 angles. This would mean you'd have to multiply each quadrilateral by 4 to find your answer. 
I hope this helps a little.
4 0
3 years ago
Rhombus A B C D is shown. Lines are drawn from point A to point C and from point D to point B and intersect at point E. All side
gavmur [86]
Area of rhombus = 1/2 * diagonal * diagonal

72 = 1/2 * AC * BD

Diagonals bisect each other in a rhombus so if EC is 8 then AC is 16

72 = 1/2 * 16 * x - 1
72 = 8(x-1)
9 = x-1
X = 10

Check
72 = 1/2 * 16 * 10-1
72 = 1/2 * 16 * 9
72 = 8 * 9
72=72
4 0
2 years ago
Read 2 more answers
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