n = 38 , p = 2/5 = 0.4
std.deviation = sqrt(npq)
= sqrt(38 * 0.4 * 0.6)
= 3.02
Option D) is answer
Find the standard deviation for the binomial distribution which has the stated values of n and...
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need help please asap 10) Find the standard deviation, o, for the binomial distribution with t = 38 and p=0.4. A) 0 =6.29 B) 0=0.61 C) o = 3.02 D) a = 7.14 11) According to a college survey, 22% of all students work full time. Find the mean for the number of students 11) who work full time in samples of size 16. A) 2.8 students B) 3.5 students C) 0.2 students D) 40 students 12) 12) Use the...