What is the income distribution of super shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon. In the...


What is the income distribution of super shoppers? Asupermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon. In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to the nearest thousand dollars.

































Income range5-1515-2525-3535-4545-5555 or more
Midpointx
102030405060
Percent of super shoppers20%13%21%17%19%10%

1. Compute the expected income ? of a super shopper. (Round your answer to two decimal places.)
? = ____ thousands of dollars


2. Compute the standard deviation ? for the income of super shoppers. (Round your answer to two decimal places.)
? = _____ thousands of dollars



What is the income distribution of super shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a<br>coupon. In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to the nearest<br>thousand dollars.<br>Income range<br>5-15<br>15-25<br>25-35<br>35-45<br>45-55<br>55 or more<br>Midpoint x<br>Percent of super shoppers<br>10<br>20<br>30<br>40<br>50<br>60<br>20%<br>13%<br>21%<br>17%<br>19%<br>10%<br>

Extracted text: What is the income distribution of super shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon. In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to the nearest thousand dollars. Income range 5-15 15-25 25-35 35-45 45-55 55 or more Midpoint x Percent of super shoppers 10 20 30 40 50 60 20% 13% 21% 17% 19% 10%

Jun 03, 2022
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