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Reil [10]
3 years ago
6

A frog is sitting on the ground when he is scared by a big dog. His movement is

Mathematics
1 answer:
horsena [70]3 years ago
7 0
1 second is the answer
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The height (in inches) of adult men in the United States is believed to be Normally distributed with mean μ . The average height
Jlenok [28]

Answer: a. 69.72 ± 1.37

Step-by-step explanation:

We want to determine a 90% confidence interval for the mean height (in inches) of adult men in the United States.

Number of sample, n = 25

Mean, u = 69.72 inches

Standard deviation, s = 4.15

For a confidence level of 90%, the corresponding z value is 1.645. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean ± z × standard deviation/√n

It becomes

69.72 ± 1.645 × 4.15/√25

= 69.72 ± 1.645 × 0.83

= 69.72 ± 1.37

The lower end of the confidence interval is 69.72 - 1.37 = 68.35

The upper end of the confidence interval is 69.72 + 1.37 = 71.09

5 0
3 years ago
What is the degree of y= x2
IRISSAK [1]

Answer:

2nd degree

Step-by-step explanation:

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3 years ago
Which of the following can cause a communicable disease
velikii [3]
What does "the following" mean ?

Where are the choices ?
8 0
3 years ago
Find the volume of the cylinder to the nearest tenth use 3.14
Maurinko [17]

the answer is 3.14 r^2 h

the h is the height

3 0
3 years ago
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210 students were asked whether they want to go to a water park or a roller skating rink for a class party.
Brrunno [24]

Answer:

60.3

Step-by-step explanation:

hope this helps

4 0
3 years ago
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