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4 years ago

9

Elise randomly surveyed students at her school to find out their favorite music. The table shows the results of Elise's survey.

If there are 400 students at Elise's school, how many can she predict will like pop music the best?

1 answer:

MaRussiya [10]4 years ago

8 0

Answer:

Umm 125 I guess

Step-by-step explanation:

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What is 6x-9-2(1-x)=x-9

erik [133]

6x-9-2(1-x) = x-9
6x-9-2+2x = x-9 | -x
7x -11 = -9
7x = -9+11
7x = 2
x = 2/7

3 0

3 years ago

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A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys

guapka [62]

Answer:

The probability that a randomly selected boy in secondary school can run the mile in less than 368 seconds is P(X<368)=0.011.

Step-by-step explanation:

We have a normal distribution with mean 460 and standard deviation 40 to describe the time for the mile run in its secondary-school fitness test.

We have to calculate the probabiltiy that a randomly selected boy in secondary school can run the mile in less than 368 seconds.

To calculate this, we have to calculate the z-score for X=368:

$z=\dfrac{X-\mu}{\sigma}=\dfrac{368-460}{40}=\dfrac{-92}{40}=-2.3$

Then, we can calculate the probability:

$P(X$

8 0

3 years ago

4. In the given data set witch TWO measures are equivalent?

vredina [299]

The mode is the number that appears the most out of a given sequence.
30 appears the most.
Our mode is 30.
The median is the middle number of a list of numbers from least to greatest.
I will organize it for you.
20, 25, 30, 30, 30, 35, 45, 50, 100.
To determine the median the fast way, cross out the smallest number with the largest number until you can no longer do so.
20,25,30,30,30,35,45,50,100
25,30,30,30,35,45,50
30,30,30,35,45
30,30,35
30.
Our median is 30.
We do not need to figure out the mean, since we have found our answer;
Our mode and our median are equivalent.
I hope this helps!

4 0

3 years ago

2 times 4 squared................

Fynjy0 [20]

The answer is -------32------------ ok

6 0

4 years ago

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A bathtub can hold 80 gallons of water. The faucet flows at a rate of 4

svetlana [45]

Answer:

32% of the tub will be filled after 8 minutes. Hope this helps!

Step-by-step explanation:

4x8= 32

8 0

4 years ago

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