Devry Math 221 Week 3 Homework - Latest

DeVry MATH 221 Week 3 Homework - Latest

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MATH 221 Homework Week 3

1. The access code for a car’s security system consist of four digits. The first digit cannot be zero and the last digit must be odd. How many different codes are available?

The number of different codes available is 4500.

• The access code for a car’s security system consist of four digits. The first digit cannot be 6 and the last digit must be even or zero. How many different codes are available?

The number of different codes available is 4500.

• A probability experiment consists of rolling a 6-sided die. Find the probability of the event below:

Rolling a number is less than 5

The probability is 0.667.

• A probability experiment consists of rolling a 6-sided die. Find the probability of the event below:

Rolling a number is less than 4

The probability is .5.

• Use the frequency distribution, which shows the responses of a survey of college students when asked, “How often do you wear a seat belt when riding in a car driven by someone else?” Find the following probabilities of responses of college students from the survey chosen at random.

Response Probability

Never 0.021 (Round to the nearest thousandth as needed)

Rarely 0.062 (Round to the nearest thousandth as needed)

Sometimes 0.110 (Round to the nearest thousandth as needed)

Most of the time .272 (Round to the nearest thousandth as needed)

Always .536 (Round to the nearest thousandth as needed)

• Use the frequency distribution, which shows the responses of a survey of college students when asked, “How often do you wear a seat...