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3 years ago

An employee at a gym wants to select a random sample of gym members for a survey about their exercise habits.

Mathematics

2 answers:

Scrat [10]3 years ago

6 0

Answer:

no no yes yes

Step-by-step explanation:

34kurt3 years ago

5 0

Answer:

No, no, yes, no

Step-by-step explanation:

The first one is not random. He is sampling only the earliest gym goers.

The second one is not random. He is sampling only from one zip code.

The third one is random. He is using a random number generator.

The fourth one is not random. He is sampling only volunteers.

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stealth61 [152]

Step-by-step explanation:

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2 years ago

235+374= use rounding or compatible numbers to estimate the sum

vlada-n [284]

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3 years ago

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3 years ago

Over 1,000 people try to climb Mt. Everest every year. Of those who try to climb Everest, 31 percent succeed. The probability th

Anit [1.1K]

Answer:

A- 0.125

B- Success of climbing mount Everest is independent of age.

Step-by-step explanation:

Let x denote success in climbing Mount Everest

Let y denote the climber is at least 60 years old.

Therefore,

P(x) = 0.31

P(y) = 0.04

P( x ∩ y) = 0.005

Probability of success when the climber is at least 60 years old =

P( x ∩ y) ÷ P(y) = 0.005 ÷ 0.04 = 0.125.

The success rate is independent of age as there are both success and failure rates across board on the scale of ages of climbers.

7 0

3 years ago