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meriva
3 years ago
9

A researcher wishes to investigate differences in college admission rates between students at two high schools. She randomly sel

ect 100 students from the 200 seniors at school a and 100 students from the 300 students at school b. What sampling method did she use?
Cluster
Stratified
Simple Random
Systematic
Mathematics
2 answers:
kodGreya [7K]3 years ago
7 0

56

sorry thisnis wrong

i need point

Katen [24]3 years ago
5 0

Answer: stratified

Step-by-step explanation:

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2 years ago
1. Suppose that cos B = 0.68. What is the value of sin(a)? Explain.
Papessa [141]

The value of Sin(a) suppose that Cos B = 0.68 in which case, a + B = 90° is; 0.68.

<h3>Trigonometry</h3>

First, when we have two angles, whose sum equals, 90°.

In essence, Since the algebraic sum of angles A and B is 90°;

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  • B = 90 -A.

By trigonometric identity;

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Where; (90 - A) = B.

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2 years ago
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3 years ago
Jack broke apart 5x216 as (5x200) + (5x16) to multiply mentally.What strategy did Jack use?
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3 years ago
Solve on [0,2pi). Answer in order from smallest to biggest<br> cos x sin x = sin x
Musya8 [376]

Answer:

0, π

Step-by-step explanation:

cos x sin x = sin x

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cos x = 1, x = 0

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