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3 years ago

The histogram shows the ages of the volunteers who cleaned up a beach.

Mathematics

2 answers:

statuscvo [17]3 years ago

6 0

<h2>Answer:</h2>

The percent of the volunteers who were at least 15 years old but no more than 24 years old are:

30%

<h2>Step-by-step explanation:</h2>

We will make a table based on the histogram:

Age-group Number of students

10-14 3

15-19 2

20-24 7

25-29 8

30-34 5

35-39 5

Hence, the number of volunteers who are atleast 15 years no more than 24 years old are those who come in the age-group 15-19 and 20-24.

Hence, total number of such students= 2+7=9

and the total number of students= 3+2+7+8+5+5= 30

Hence, the percent of volunteers who lie between 15-24 years of age are:

$=\dfrac{9}{30}\times 100\\\\=30\%$

Hence, the answer is: 30%

Greeley [361]3 years ago

3 0

The answer is 29.03%. because there are 2 people who are 15-19 and there are 7 people between 20-24. 7+2=9. and there are a total of 31 people. so 9 out 31 as a percent is 29.03%. hope this helps. please give me a brainliest

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The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

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<em>The above probability is calculated by looking at the value of x = 2.14 in the z table which has an area of 0.98382.</em>

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