**Unformatted text preview: **11. Marketing: Photography Does the kidfoctor make a difference? If you are
talking photography, the answer may be yes! The following table is based on
information from American Demographics (Vol. 19, No. 7). Under 2 None under 21
80% 50% Let us sayr you are a market research person who interviews a random sample of 10 households. (a) Suppose you interview 10 households with children under the age of 2 years.
Let :- represent the number of such households that buy photo gear. Make a
histogram showing the probability distribution of r for r = (1 through r = 10.
Find the mean and standard deviation of this probability distribution. (b) Suppose that the 10 households are chosen to have no children under 21
years old. Let r represent the number of such households that buy photo
gear. Make a histogram showing the probability distribution of r for r = [I
through :- = ID. Find the mean and standard deviation of this probability
distribution. (c) Interpretation Compare the distributions in parts (a) and (b). You are
designing TV ads to sell photo gear. Could you justify featuring ads of
parents taking pictures of toddlers? Explain your answer. ...

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- Fall '17
- Normal Distribution, Standard Deviation, Probability distribution