Suppose that 10% of the people are left handed if 6 people are selected at random what is the probability that exactly 2 of them are left handed
Suppose that 10% of the people are left handed if 6 people are selected at random...
Assume that 15% of people are left-handed. Suppose 16 people are selected at random. Answer each question about right-handers below. a) Find the mean and standard deviation of the number of right-handers in the group. b) What's the probability that they're not all right-handed? c) What's the probability that there are no more than 10 righties? d) What's the probability that there are exactly 7 of each? e) What's the probability that the majority is right-handed?
8) Assume that 15?% of people are? left-handed. Suppose 14 people are selected at random. Answer each question about? right-handers below. a)find the mean and standard deviation of the number of right-handers in the group. b)what's the probability that they're not all right-handed? c)what's the probability that there are no more than 8 righties? d)what's the probability that there are exactly 6 of each?
Assume that 13% of people are left-handed. Suppose 8 people are selected at random. Answer each question about right-handers below. e) What's the probability that the majority is right-handed?
Assume that 15% of people are left-handed. If 5 people are selected at random, find the probability of each outcome described below. a) Find the probability that there are exactly 2 lefties in the group. (round to four decimals) b) Find the probability that there are at least 3 lefties in the group. (round to four decimals) c) Find the probability that there are no more than 2 lefties in the group. (round to four decimals)
Approximately 10% of people in the world are left-handed, so P(a person is left handed) = 0.1. Suppose we have a class of 15 people and UHD is interested in how many left-handed desks the class will need, so we define a random variable X, the number of left-handed people in the class. 1. What distribution family does this situation belong to? What is (are) the parameter(s)? 2. What is the probability that none of the students will be left...
NAME: 7. (15 points.) Left-handed people are more prone to accident-related injury than right-handed people Among a certain population of college students, the number of injuries X reported by a given student is a Poisson random variable; left-handers (L) report injuries at a handers (R) at a rate of 0.15 per year, 15% of the students are left-handed. rate of 0.25 per year, and right- (a) What is the probability that a randomly selected student is injured exactly twice this...
A random sample of 725 people is selected, of whom 92 are left-handed. Using a 1% level of significance, test the claim that 10% of the population is left handed.
3. The Jordan Sports Equipment Company finds that 10% of the general population is left-handed. Use the binomial table or formula (bottom) as appropriate in answering the following questions. (a) If 20 people are randomly selected, find the probability that exactly 3 of them are left-handed. (b) If 8 people are randomly selected, find the probability that at least one of them is left-handed.
The proportion of left-handed people in the general population is about 0.10.1. Suppose a random sample of 225225 people is observed. Curve 2 . -10 - Curve 3 - Curve 4 Curve 5 20 Find the probability using the normal table. (Opens in new window) P(P >0.13) = P(z > 1.5) = (Click to view hint) Check Your Turn np = 22.5 The proportion of left handed people in the general population is about 0.1. Suppose a random sample of...
Suppose that 10% of students are left-handed. a) In a study group of 6 students, find the exact probability that at most 1 of them is left-handed. b) In a classroom of 60 students, find an approximate probability that at most 10 of them are left-handed.