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11 Stat Reviewer

Authored by Cherie Ann Rieta

Mathematics

11th Grade

Used 6+ times

11 Stat Reviewer
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38 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a discrete random variable?

The number of patients in a hospital

The average weight of female athletes.

The average amount of electricity consumed

The amount of paint used in repainting a building.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is correct?

The means of the samples drawn from a population maybe equal, greater than or less than the population mean.

The mean of the sampling distribution of the sample mean is greater than the population mean

The mean of the sampling distribution of the mean is less than the population mean.

The mean of the samples drawn from a population are always equal to the population mean

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Probability distribution is generated by what?

Frequency

Mean

Population

Sample

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A certain population has a mean of 1.4 and a standard deviation of 5.6. if random samples of size 5 is taken from this population, which of the following statements is correct?

The standard deviation of the sampling distribution of the sample mean is 5.6

The standard deviation of the sampling distribution of the sample means is 15.4

The mean of the sampling distribution of the sample mean is less than 15.4

The mean of the sampling distribution of the sample mean is equal to 15.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In statistics, errors refers to what?

a mistake resulting in wrong decisions

difference between an observed value and parameter

difference between two parameter values

mistakes resulting from computation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following symbols denotes population standard deviation?

X   

σ                      

μ                       

s

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If two coins are tossed, which is not possible value of the random variable for the number of heads?

0   

1                       

2               

3

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