Quiz about Daily Grade: Statistics: Inferences

Question 1

A manager samples receipts of every fifth person in line. Out of 50 people, 4 had a mispriced item. If 600 people go to the store each day, how many can you expect to have a mispriced item?

Accepted Answer

48 people

Answer

50 people

Answer

80 people

Answer

12 people

Question 2

Jenny randomly selects 20 boxes of crayons from the shelf and finds two boxes with at least one broken crayon. If the shelf holds 130 boxes, how many would you expect to have at least one broken crayon?

Accepted Answer

13 boxes

Answer

10 boxes

Answer

6.5 boxes

Answer

2 boxes

Question 3

The results of a random survey showed that 42 out of 84 people plan to vote for Coach Vasquez for teacher of the month. Which is the best prediction of the total number of votes he will receive if 2,000 people vote?

Accepted Answer

1000

Answer

825

Answer

750

Answer

1200

Question 4

Source of bias that occurs when you ask people who are EASY to ask

Accepted Answer

Convenience Sampling

Answer

Response Bias

Answer

Nonresponse

Answer

Voluntary Response

Question 5

A population is a collection of all individuals, objects, or measurements of interest.

Accepted Answer

True

Answer

False

Question 6

A portion or part of a population is called a

Accepted Answer

Sample

Answer

Random survey

Answer

Tally

Answer

Frequency distribution

Question 7

a sample you get when you ask for volunteers

Accepted Answer

voluntary response sample

Answer

biased sample

Answer

convenience sample

Answer

simple random sample

Question 8

What can you "infer" by reading the passage below?

"I hate the idea of having all those people out there watching me...I just don't like it when I'm around so many people. I wish I just could hide somewhere," whispered Violet.

Accepted Answer

Violet is probably somewhat shy.

Answer

Violet can be a mean girl.

Answer

Violet can be somewhat relaxed.

Answer

Violet is afraid of everything.

Question 9

The most accurate and complete inference based on the photo is:

Accepted Answer

D. A little girl expresses her joy as she wins a race against her peers.

Answer

A. The children are participating in a race at school.

Answer

B. The children are competing against one another.

Answer

C. A boy tries to catch up to a girl as they race on the beach.

Question 10

A middle school has 490 students. Mae surveys a random sample of 60 students and finds that 24 of them have dogs. How many students are likely to have dogs?

Accepted Answer

196 students

Answer

8 students

Answer

40 students

Answer

192 students

Question 11

Part of the population of 10,800 hawks at a national park are building nests. A random sample of 72 hawks shows that 12 hawks are building nests. Estimate the number of hawks building a nest in the population.

Accepted Answer

1,800 hawks

Answer

150 hawks

Answer

432 hawks

Answer

10,800 hawks

Question 12

A manufacturer fills an order for 4,200 smart phones. The quality inspector selects a random sample of 60 phones and finds that 4 are defective. How many smart phones in the order are likely to be defective?

Accepted Answer

280 smart phones

Answer

70 smart phones

Answer

900 smart phones

Answer

1,050 smart phones

Question 13

Part of the population of 4,500 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 8 of them are infected. How many elk are likely to be infected?

Accepted Answer

720 elk

Answer

400 elk

Answer

90 elk

Answer

562.5 elk

Daily Grade: Statistics: Inferences

15 questions

A manager samples receipts of every fifth person in line. Out of 50 people, 4 had a mispriced item. If 600 people go to the store each day, how many can you expect to have a mispriced item?

Jenny randomly selects 20 boxes of crayons from the shelf and finds two boxes with at least one broken crayon. If the shelf holds 130 boxes, how many would you expect to have at least one broken crayon?

There are 480 students in Marla’s school. In her classroom, there are 3 left-handed students and 17 right-handed students. Predict the number of left-handed students in the whole school.

The results of a random survey showed that 42 out of 84 people plan to vote for Coach Vasquez for teacher of the month. Which is the best prediction of the total number of votes he will receive if 2,000 people vote?

Source of bias that occurs when you ask people who are EASY to ask

A population is a collection of all individuals, objects, or measurements of interest.

A portion or part of a population is called a

a sample you get when you ask for volunteers

What can you "infer" by reading the passage below?

"I hate the idea of having all those people out there watching me...I just don't like it when I'm around so many people. I wish I just could hide somewhere," whispered Violet.

The most accurate and complete inference based on the photo is:

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Daily Grade: Statistics: Inferences

15 questions

A manager samples receipts of every fifth person in line. Out of 50 people, 4 had a mispriced item. If 600 people go to the store each day, how many can you expect to have a mispriced item?

Jenny randomly selects 20 boxes of crayons from the shelf and finds two boxes with at least one broken crayon. If the shelf holds 130 boxes, how many would you expect to have at least one broken crayon?

There are 480 students in Marla’s school. In her classroom, there are 3 left-handed students and 17 right-handed students. Predict the number of left-handed students in the whole school.

The results of a random survey showed that 42 out of 84 people plan to vote for Coach Vasquez for teacher of the month. Which is the best prediction of the total number of votes he will receive if 2,000 people vote?

Source of bias that occurs when you ask people who are EASY to ask

A population is a collection of all individuals, objects, or measurements of interest.

A portion or part of a population is called a

a sample you get when you ask for volunteers

What can you "infer" by reading the passage below? "I hate the idea of having all those people out there watching me...I just don't like it when I'm around so many people. I wish I just could hide somewhere," whispered Violet.

The most accurate and complete inference based on the photo is:

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What can you "infer" by reading the passage below?

"I hate the idea of having all those people out there watching me...I just don't like it when I'm around so many people. I wish I just could hide somewhere," whispered Violet.