Answer:
70.06
Step-by-step explanation:
Given the mean = 1217
Standard deviation = 51
And sample size = 80
Mean of bar x = 1217
Sd/√n
= 51/√80
= 5.7060
P(bar x<1220)
P(z < 1220-1217/5.7020)
= P(z<0.5261)
= 0.7006
Therefore the level of confidence in response to this question is 0.7006.
This statement can be made with 70.06% level of confidence.
Answer:
9x-4=12x-55.....
as they are vertically opp angles
9x-12x= -55+4
-3x= -51
x= 17
Answer:
6 cups of sugar
Step-by-step explanation:
2/5=x/15
x=6
Answer:
i Don't really know this because its been a minute since I worked on this
Step-by-step explanation: -4,3
Answer:
a) what is the probability that Neither will of these products launch ?
= 0.30
b) At least one product will be launched ?
= 0.70
Step-by-step explanation:
From the above question, we have the following information:
P(A) = 0.45
P(B) = 0.60
P(A ∩ B) = P(A and B) launching = 0.35
Step 1
We find the Probability that A or B will launch
P (A ∪ B) = P(A) + P(B) - P(A ∩ B)
= 0.60 + 0.45 - 0.35
= 1.05 - 0.35
= 0.70
a) what is the probability that Neither will of these products launch ?
1 - Probability ( A or B will launch)
= 1 - 0.70
= 0.30
b)At least one product will be launched?
This is equivalent to the probability that A or B will be launched
P (A ∪ B) = P(A) + P(B) - P(A ∩ B)
= 0.60 + 0.45 - 0.35
= 1.05 - 0.35
= 0.70
