What is a confidence interval?

B. A range of values that is likely to contain the population parameter

A. A single value used to estimate a population parameter

C. A measure of the variability of a sampling distribution

D. A statistical test used to determine if there is a significant difference between two groups

How is the width of a confidence interval affected by the sample size?

B. As the sample size increases, the width of the confidence interval decreases.

A. As the sample size increases, the width of the confidence interval increases.

C. The sample size has no effect on the width of the confidence interval.

D. It depends on the population standard deviation.

How is the width of a confidence interval affected by the confidence level?

A. As the confidence level increases, the width of the confidence interval increases.

B. As the confidence level increases, the width of the confidence interval decreases.

C. The confidence level has no effect on the width of the confidence interval.

D. It depends on the sample size.

What is a sampling distribution?

A. A distribution of sample means

B. A distribution of sample variances

C. A distribution of individual observations

D. A distribution of population parameters

How is a sampling distribution created?

A. By taking repeated samples from a population

B. By calculating the mean of a single sample

C. By analyzing the individual observations in a population

D. By using statistical software

What is the standard deviation of a sampling distribution called?

B. Population standard deviation

D. Sampling distribution standard deviation

How is the standard error calculated?

A. By dividing the population standard deviation by the square root of the sample size

B. By multiplying the population standard deviation by the square root of the sample size

C. By squaring the population standard deviation

D. By taking the square root of the population standard deviation

What does the Central Limit Theorem state?

B. The mean of the sampling distribution is equal to the population mean.

A. The distribution of sample means is always normal.

C. The standard deviation of the sampling distribution is equal to the population standard deviation.

D. The shape of the sampling distribution is always skewed.

Under what conditions does the Central Limit Theorem apply?

A. When the sample size is large (typically n ≥ 30)

B. When the population is normally distributed

C. When the population standard deviation is known

What is the significance of the Central Limit Theorem?

A. It allows us to make inferences about a population based on a sample.

B. It simplifies the calculation of probabilities.

C. It proves that the mean of any sampling distribution is always equal to the population mean.

D. It shows that the shape of a sampling distribution is always normal.

The weights of adult male lions have a mean weight of 450 pounds and a standard deviation of 50 pounds. 40 lions are randomly selected from the population, and the mean of each sample is determined. Find the mean and standard error of the mean of the sampling distribution.

A. Mean = 450 pounds, Standard Error = 7.91 pounds

B. Mean = 450 pounds, Standard Error = 8.91 pounds

C. Mean = 450 pounds, Standard Error = 9.91 pounds

D. Mean = 450 pounds, Standard Error = 10.91 pounds

A teacher recorded the following test scores for a class: 80, 90, 95, 95, 95, 100. What is the mean, median, and mode of the test scores?

Mean: 97.5, Median: 95, Mode: 95

Mean: 92.5, Median: 95, Mode: 100

Mean: 90, Median: 95, Mode: 100

Statistics and Probability 1st Quarter Exam Quiz

40 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A sample space is:

A. A list of all possible outcomes of an experiment

B. The probability of an event occurring

C. The average value of a data set

D. The middle value in a data set

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Probability is:

A. The study of chance and randomness

B. The average value of a data set

C. The middle value in a data set

D. The spread of data

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The mean of a data set is:

A. The sum of the data divided by the number of data points

B. The middle value in a data set

C. The most frequent value in a data set

D. The spread of data

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The median of a data set is:

A. The sum of the data divided by the number of data points

B. The middle value in a data set

C. The most frequent value in a data set

D. The spread of data

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The standard deviation of a data set is:

A. The sum of the data divided by the number of data points

B. The middle value in a data set

C. The most frequent value in a data set

D. The spread of data

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In rolling two dice, the sum of the two dice, 12, occurs just once, so P(X) is:

A. 1/36

B. 1/12

C. 1/6

D. 1/2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the probability that the sum of the scores when rolling two dice is 1, 6, 7, and 8?

A. 1/36

B. 4/9

C. 1/6

D. 1/2

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

40 questions

ASAS MATEMATIKA XII

Quiz

•

12th Grade

40 questions

UJIAN AKHIR SEMESTER GENAP SELURUH KELAS XII 2024/2025

Quiz

•

12th Grade

40 questions

ข้อสอบปลายภาคเพิ่มเติม2/64

Quiz

•

University

45 questions

Composite Solids

Quiz

•

8th Grade - University

37 questions

Final Exam Review

Quiz

•

9th - 12th Grade

40 questions

Matematika 2024/2025 Kelas IX

Quiz

•

9th Grade - University

45 questions

Mid Term Review part 1

Quiz

•

9th - 12th Grade

39 questions

امتحانات سابقه رياضيات الفصل 1 (2024-2025 الكتروني)

Quiz

•

12th Grade

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

20 questions

Figurative Language Review

Quiz

•

6th Grade

Discover more resources for Mathematics

12 questions

Add and Subtract Polynomials

Quiz

•

9th - 12th Grade

13 questions

Model Exponential Growth and Decay Scenarios

Quiz

•

9th - 12th Grade

27 questions

7.2.3 Quadrilateral Properties

Quiz

•

9th - 12th Grade

10 questions

Key Features of Quadratic Functions

Interactive video

•

8th - 12th Grade

11 questions

Exponent Quotient Rules A1 U7

Quiz

•

9th - 12th Grade

18 questions

Integer Operations

Quiz

•

5th - 12th Grade

15 questions

Exponential Growth and Decay Word Problems

Quiz

•

9th - 12th Grade

10 questions

complementary and Supplementary angles

Quiz

•

9th - 12th Grade

Statistics and Probability 1st Quarter Exam

A sample space is:

Probability is:

The mean of a data set is:

The median of a data set is:

The standard deviation of a data set is:

In rolling two dice, the sum of the two dice, 12, occurs just once, so P(X) is:

What is the probability that the sum of the scores when rolling two dice is 1, 6, 7, and 8?

If P(X=x) = 2/12, in rolling two dices, the sum of the two dices, what is the value of x?

What is the probability of getting a head when flipping a coin?

What is the probability of drawing a heart from a standard deck of cards?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics