Mathematics, 21.02.2020 18:56 shiny9362
The proportion of households in a region that do some or all of their banking on the Internet is 0.31. In a random sample of 1000 households from this region, let x be the number that do some or all of their banking on the Internet.
Mean = 310 Standard deviation = 14.63 z-score = -12.27
Find the approximate probability that the number of households that use the Internet for banking in a sample of 1000 is less than or equal to 130.
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