Answer:
x-y =2 …(1)
x+y = 4 …(2)
add (1) and (2), to get
2x = 6, or x = 3. From (1) y = 3–2 = 1.
So x = 3, y = 1.
Answer:
Mean of the binomial distribution
μ = 174.972 bolts
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that Bob tested 24 bolts that he randomly picked and found that 5 were defective
The proportion of the defective item
<u><em>Step(ii):-</em></u>
Let 'x' be a random variable in a binomial distribution
Mean of the binomial distribution
μ = np
μ = 840 ×0.280
μ = 174.972
<u><em>Final answer</em></u>:-
Mean of the binomial distribution μ = 174.972 bolts
G-8=B you can't find out B (boys) until you know how many G (girls) there are in Mrs. Davis's class
Answer:
27/3=9
Step-by-step explanation:
9 books per day
Answer:
0
Step-by-step explanation: