Mathematics, 12.02.2021 14:00 yere144k
A survey asks a random sample of 400 adults in Ohio if they support an increase in the state sales tax. Let X denote the number in the sample that say they support the increase. Suppose that 32% of all adults in Ohio support the increase. The mean of X is: The standard deviation of X is:
Answers: 1
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Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey
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Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?
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