(ii) A grocery store gives its customers cards that may win them a prize when matched with other cards. The back of the card announces the following probabilities of winning various amounts are when a customer visits the store 10 times:
Amount |
$1000 |
$200 |
$50 |
$10 |
Probability |
1/10,000 |
1/1000 |
1/100 |
1/20 |
Youre right ;264.07 is the varince.
Standard deviation is the square root of it or 16.2
a) Deciamal format,to 4 decimal places
b) Two decimal places.
c). 2 decimal places
(ii) A grocery store gives its customers cards that may win them a prize when matched...
A regional automobile dealership sent out fliers to prospective customers indicating that they had already won one of three different prizes: an automobile valued at $24 comma 00024,000, a $7575 gas card, or a $55 shopping card. To claim his or her prize, a prospective customer needed to present the flier at the dealership's showroom. The fine print on the back of the flier listed the probabilities of winning. The chance of winning the car was 1 out of 31...
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