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MaRussiya [10]
1 year ago
5

In mr. wilson's geometry class, 12 of the students received a's and 20 received b's. in his statistics class, 11 of the students

got a's and 15 got b's. in which class did mr. wilson's students earn a higher ratio of a's to b's? a. statistics b. neither, the ratios are equivalent c. geometry d. not enough information
Mathematics
1 answer:
Ainat [17]1 year ago
7 0

In (A) statistics class Wilson's students earn a higher ratio of a's to b's.

<h3>What are ratios?</h3>
  • A ratio in mathematics describes how many times one number contains another.
  • For example, if a dish of the fruit contains eight oranges and six lemons, the orange-to-lemon ratio is eight to six.
  • Similarly, the lemon to orange ratio is 6:8, while the orange to total fruit ratio is 8:14.

To find the higher ratio:

Given -

  • Geometry class = a:b = 12:20 = 3:5
  • Statistics class = a:b = 11:15

As we can observe that 3:5 < 11:15.

Therefore, in (A) statistics class Wilson's students earn a higher ratio of a's to b's.

Know more about ratios here:

brainly.com/question/2328454

#SPJ4

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Answer:

There is no sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

We are given;

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We know that, standard deviation(σ) = √variance

Thus;

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The hypotheses are;

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Let's find the z-score from the formula;

z = (X - μ)/(√σ/n)

z = (402 - 404)/√(26/27)

z = -2.04

From the z-distribution table attached, we have a p-value of 0.02068

This is less than the significance value of 0.01 and thus we will reject the null hypothesis and conclude that there is no sufficient evidence to support the claim that the bags are underfilled

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4 years ago
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Step-by-step explanation:

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