According to CTIA, 25% of all U.S. households are wireless-only households (no landline). In a random sample of 20 households, what is the probability that
a. Fewer than 3 are wireless-only?
b. At least 12 are wireless-only?
(Hint: Binomial probability function)
Be Very detailed show every step and calculation!
According to CTIA, 25% of all U.S. households are wireless-only households (no landline). In a random...
1. According to the U.S. Department of Commerce, 30% of Arkansas households had a computer in 2002. If 285 Arkansas households are selected at random, find the following probabilities: (Please show all necessary justifications.) a.The exact probability that 70 or fewer have a computer b. The probability that 70 or fewer have a computer using the normal approximation. c. The probability that 70 or fewer have a computer using the normal approximation with the continuity correction. 2. The probability that a...
According to a recent survey 60% of households have personal computers. If a random sample of 180 households is selected, what is the probability that fewer than 100 have a personal computer. Approximate Binomial by Normal distribution
According to the Federal Communications Commission, 70% of all U.S. households have vcrs. In a random sample of 15 households, what is the probability that the number of households with vcrs is between 10 and 12, inclusive? A) 0.2061 B) 0.4053 C) 0.5948 D) 0.7329
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The budgeting web site Hello Wallet reported that 25% of U.S. households have withdrawn money from a 401K or other retirement fund for needs other than retirement. Suppose 12 U.S. households are selected at random. (a) What is the probability that exactly 2 households withdrew money from a 401K or other retirement fund for needs other than retirement? (b) What is the probability that fewer than 3 households withdrew money from a 401K or other retirement fund for needs other...
A recent survey show 60% of all U. S. house hold has wireless phone only. In a random sample of 20 households what is the probability that exactly 10 has wireless only.
According to recent surveys, 60% of households have personal computers. If a random sample of 180 households is selected, what is the probability that more than 60 but fewer than 100 have personal computers?
please answer all! its actually shorter than you think!
I. In the U.S., 65.2% of households own their own home. Consider a random sample of 11 U.S. households. Find the probability that exactly six own their own home by hand 2, For the situation in #1: a. Find the probability that less than 10 of the 11 randomly chosen U.S. households own their own home by hand. 3. For the situation in #1, how many U.S. households out of 11...
According to recent surveys, 60% of households have personal computers. If a random sample of 185 households is selected, what is the probability that more than 65 but fewer than 101 have a personal computer? Roundt-value calculations to 2 decimal places and final answer to 4 decimal places. Source: New York Times Almanac. P(65<x<101)
according to a government commission, 70% of all nations households
have VCRs. In a random sample of 15 households, what is the
probability that at least 13 have VCRs? Round to four decimal
places
According to a government co have VCRs? Round to four de O O 0 O 0.1268 0.7000 0.5000 0.8732