Probability and Statistics Q

Probability and Statistics Q

Assessment

Flashcard

Mathematics

11th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the probability of event A if P(A) = 1/10?

Back

The probability of event A is 1/10.

2.

FLASHCARD QUESTION

Front

What is the complement of an event A with P(A) = 1/10?

Back

The complement of event A is P(A') = 1 - P(A) = 9/10.

3.

FLASHCARD QUESTION

Front

In a survey, if 62.5% of respondents have portable earbuds and 40% of those have a smart speaker, what is the probability of having both?

Back

P(Both) = P(Earbuds) * P(Smart Speaker | Earbuds) = 0.625 * 0.40 = 0.25.

4.

FLASHCARD QUESTION

Front

What is the probability of selecting a varsity athlete or an honor roll student from a class of 200 with 26 athletes on the honor roll, 56 athletes, and 50 honor roll students?

Back

P(Athlete or Honor Roll) = (P(Athlete) + P(Honor Roll) - P(Athlete and Honor Roll)) = (56/200 + 50/200 - 26/200) = 0.40.

5.

FLASHCARD QUESTION

Front

If you test 200 electric hand warmers and find 4 defective, how many defective hand warmers would you expect in a shipment of 5000?

Back

Expected defective = (4/200) * 5000 = 100.

6.

FLASHCARD QUESTION

Front

When spinning a spinner with equal sections numbered 1 to 10, are you more likely to get an even or odd number?

Back

You have an equal chance of getting an even or odd number (5 each).

7.

FLASHCARD QUESTION

Front

Define probability in the context of statistics.

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

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