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Firdavs [7]
3 years ago
14

The percentage of students in school that attended the talent show for the years 2008 to 2013 are shown. This year, the school h

as a total of 400 students. How many students do you expect to attend the talent show this year? Explain how you found your answer.
PLEASE I NEED HELP ITS URGENT
Mathematics
1 answer:
Elodia [21]3 years ago
7 0

Answer:

352 students

Step-by-step explanation:

Given

See attachment for table

n = 400

Required

Attendance of students in this year's show

First, we calculate the mean of the table

Mean= \frac{\sum x}{n}

So, we have:

Mean= \frac{85\% + 91\% + 92\% + 87\% +84\% + 89\%}{6}

Mean= \frac{528\%}{6}

Mean= 88\%}

Multiply the mean by the total students

Expected = Mean * n

Expected = 88\% * 400

Expected = 352

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3 years ago
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Nikita's distance from her for the second part of the race was 1.5 kilometers.

Since Nikita ran a 5-kilometer race in 39 minutes (0.65 of an hour) without training beforehand, and in the first part of the race, her average speed was 8.75 kilometers per hour, while for the second part of the race, she started to get tired, so her average speed dropped to 6 kilometers per hour, to determine which expression represents Nikita's distance for the second part of the race the following calculation must be performed:

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Learn more about maths in brainly.com/question/22791791

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