Probability that at least three of them will have part-time
A survey from Teenage Research Unlimited found that 30% of teenage consumers receive their spending money from part-time jobs. If five teenagers are selected at random, find the probability that at least three of them will have part-time jobs.
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College students average 8.6 hours of sleep per night with a standard deviation of 35 minutes. If the amount of sleep is normally distributed, what proportion of college students sleep for more than 9.7 hours?
What is the expected number of guests that might turn up at your party, and its standard deviation? What ishe probability the number of guests is between 70 and 80?
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1) You are sending out 60 invitations to a party.each person can bring a guest if they wish. Suppose it's equal probable that the invitee does not show up,shows up alone, or with a guest. (A) What is the expected number of guests that might show u
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A local environmental organization is interested in determining if the proportion of SUVs un SB has increased from the last years value of 10% to an alternative value closer to 15%. A saample of 400 cars passing through state street intersection w
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A local environmental organization is interested determining if the proportion of red cars in a city has increased from last years value of 10% to a value closer to 15%. A sample of 400 cars were taken and 60 were red. state a null hypothesis H0 a
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Identify a behavior problem that a child might struggle with (4 year old child acting out and throwing a tantrum when they are unable
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