You have the numbers 1-25 written on slips of paper. If you choose a slip at random, what is the probability that you will select a number that is divisible by 5?

You have the numbers 1-24 written on slips of paper. If you choose a slip at random, what is the probability that you will select a number that is divisible by 6?

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Oh and there is this to-

A school orders 800 calculators from a manufacturer. If the probability of a calculator being defective is 1.8%, predict how many calculators are likely to be defective. Round your answer to the nearest whole number.

Teesha is in French club. There are 10 freshman, 12 sophomores, 15 juniors, and 30 seniors in the club. The advisor is going to randomly choose one of the members of the club to be a guide for an important visitor. Find the probability that she will choose a junior or a senior.

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To find the probability of selecting a number that is divisible by 5, you need to know the total number of slips and the number of slips that are divisible by 5.

For the first question, the total number of slips is 25 because there are 25 numbers from 1-25. The slips that are divisible by 5 are 5, 10, 15, 20, and 25. There are 5 slips in total that are divisible by 5.

To find the probability, divide the number of slips divisible by 5 by the total number of slips:

Probability = Number of favorable outcomes / Total number of outcomes

Probability of selecting a number divisible by 5 = 5 / 25 = 1/5

So, the probability of selecting a number that is divisible by 5 is 1/5 or 0.2.

For the second question, the total number of slips is 24 because there are 24 numbers from 1-24. To find the slips that are divisible by 6, you need to determine which numbers can be evenly divided by 6. In this case, the numbers divisible by 6 are 6, 12, 18, and 24. There are 4 slips in total that are divisible by 6.

Probability of selecting a number divisible by 6 = 4 / 24 = 1/6

So, the probability of selecting a number that is divisible by 6 is 1/6 or approximately 0.1667.