math check
posted by Tom56
Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is lefthanded. (Give your answers correct to three decimal places.)
(a) Compute the probability that exactly five students are lefthanded.
Incorrect: 9.936
(b) Compute the probability that at most four students are lefthanded.
Incorrect: .016.
(c) Compute the probability that at least six students are lefthanded.
Incorrect: .197
No matter how I work these out it comes up wrong??
Respond to this Question
Similar Questions

Statistics
Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are … 
Math
Can someone answer a question similar to a and b so I can use as an example. Consider the following binomial random variables. (a) The number of tails seen in 47 tosses of a quarter. (i) Find the mean. (Give your answer correct to … 
Math check answer
Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are … 
math check
Posted by Nora 56 on Sunday, June 2, 2013 at 7:32pm. Sorry to repost but no one answered after I posted on the 2nd,please help, Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population … 
Statistics help
Suppose that you are in a class of 32 students and it is assumed that approximately 9% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are … 
Stats
Suppose that you are in a class of 31 students and it is assumed that approximately 10% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are … 
STATISTICS
Suppose that you are in a class of 29 students and it is assumed that approximately 16% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are … 
Statistics
In a certain class 27% of the students are lefthanded. suppose that a random sample of 53 students is selected. Find the mean number of lefthanded students in the class. Round your answer to the nearest integer. 
statistics
Suppose that you are in a class of 28 students and it is assumed that approximately 8% of the population is lefthanded. (Give your answers correct to three decimal place. Compute the probability that exactly five students are lefthanded 
Math
Left hand! right hand Female___!________ Male_____!_______ Total18 ! 122 The incomplete table above summarizes the number of lefthanded students and righthanded students by gender for the eighth grade students at Keisel Middle School. …