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nlexa [21]
1 year ago
6

Cara is a high school student. On average, there are 26 students per class at her school, with a standard deviation of 3 student

s. What percentage of classes at Cara's high school will have between 20 students and 35 students?
A. 0.15%
B. 97%
C. 99%
D. 0.3%
Mathematics
1 answer:
aliina [53]1 year ago
8 0

Answer:

B. 97%

Step-by-step explanation:

20 students is -2 standard deviations away from the mean

35 is +3 standard deviations away from the mean

100 - 2.4 = 97.6

(2.4 is amount of data we are not using)

please refer to the standard deviation graph attached :)

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Step-by-step explanation:

We have been given that 15 players two coaches and 21 parents attend this year sports banquet the cost of each meal was $12 plus 5% sales tax.

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\text{Cost of each meal with tax}=\$12+\$12\times \frac{5}{100}

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