A local bakary has determined a probability distribution for the number of cheesecakes that they sell in a given day. Give all answers as decimals instead of percents. # sold 10 15 20 Probability 0.17 0.16 0.13 ? 0.15 What is the probability of selling 15 cheesecakes in a given day? (Use the formula directly above example 5.1.1 to determine this.) What is the probability of selling at least 10 cheesecakes? What is the probability of selling 5 or 15 cheesecakes? What is the probability of selling 25 cheesecakes? Give the expected number of cheesecakes sold in a day using the discrete probability distribution? (Use the formula for u on page 2 of chapter five.) What is the probability of selling at most 10 cheesecakes?

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Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.