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A manufacturer ships toasters in cartons of 10. In each carton, they estimate a 10% chance that one of the toasters will need to be sent back for minor repairs. In a batch of 5,000 toasters, what are the chances that fewer than 450 toasters need to be returned? (round to three decimal places)

A pizza delivery driver, always trying to increase tips, runs an experiment on his next 40 deliveries, all of which will be made on the same warm, sunny day. He flips a coin to decide whether or not to call a customer from his mobile phone when he is five minutes away, hoping this slight bump in customer service will lead to a slight bump in tips. After 40 deliveries, he will compare the average tip percentage between the customers he called and those he did not. Was the experiment replicated?

Administrators at a university were interested in estimating the percentage of students who are the first in their family to go to college. The university student body has about 47,000 members. The university administration is considering a variety of ways to sample students for a survey. Identify the problem of: setting up a table in the student union and ask students to stop and answer a survey

Using the two-way frequency table, determine what is the probability that a person likes to watch football, given that she also likes to watch basketball? hint: use the total columns… likes to watch: Football not football Total basketball 22 14 not basketball 37 27 Total

Real estate ads suggest 74% of homes for sale have garages, 17% have swimming pools, and 3% have both features. What is the probability that a home for sale has a pool or a garage? (round to two decimal places) hint: venn diagram…

A pizza delivery driver, always trying to increase tips, runs an experiment on his next 40 deliveries, all of which will be made on the same warm, sunny day. He flips a coin to decide whether or not to call a customer from his mobile phone when he is five minutes away, hoping this slight bump in customer service will lead to a slight bump in tips. After 40 deliveries, he will compare the average tip percentage between the customers he called and those he did not. Was the experiment randomized?

In a dresser are nine blue shirts, six red shirts, and ten black shirts. What is the probability of randomly selecting a red shirt?

4.2.2 Give a reason for your answer to question 4.2.1. (1)

3.2.2 a) Which flower is the largest?  Choose the correct answer from the dropdown box below. [1] (1)

3.3.1 Describe the process of the light phase of photosynthesis by providing the name and number of the substances involved as indicated in the diagram. (8)