Chapter 5

Question 1

Answer 1

(a) P(2<x<6) so 6 - 1 on the probability table
(b) P<4, 3 on the probability table
(c) 1 - 5(on the probability table)

Question 2

Answer 2

Mean = np
Variance = np(1-p)

Question 3

Answer 3

Question 4

Answer 4

(a)binompdf (exact lightbulbs)
(b)1-16(on probability sums)
(c)5th up on probability sums

Question 5

Answer 5

n= #tulip & daffofil bulbs
r = bulbs selected at random
(6C3)*(5C4)/(11C7)

Question 6

Answer 6

(a) # of face cards 12 - Pull 4 face cards
(12C4)(40C4)/(52C)
(b)AT LEAST = 1 less
1-(4C0*48C8/52C8)

Answer 7

q is opposite of p

Question 8

Answer 8

lamda 7 formula + lamda 8 formula + lamda 9 formula