Answer:
Option c
Step-by-step explanation:
From the question we are told that:
Four accounting majors
Two economics majors
Three marketing majors
Total Applicants N_T=9
Generally the equation for Different ways that five of these could be hired is mathematically given by
Generally the equation for Different ways that Three of these could be hired is mathematically given by
Option c
Answer: C) 0.8664.
Step-by-step explanation:
Given, The tread life of tires mounted on light-duty trucks follows the normal probability distribution with .
Let be the sample mean tire life of any 4 tires.
Now , the probability that the mean tire life of these four tires is between 57,000 and 63,000 miles will be :-
For Very likely , the probability should lie between 0.95 and 1.
Hence, the correct answer is C) 0.8664.
Answer:
Step-by-step explanation:
Variance is the sum of squares of all items x from mean. i.e
Variance =
Being the sum of squares variance can never be negative irrespective of mean being negative.
Std deviation is the square root of variances. This will thus be less than variance if variance >1 other wise std deviation will be bigger than variance.
Hence option d is right.