Answer:
P(2.50 < Xbar < 2.66) = 0.046
Step-by-step explanation:
We are given that Population Mean, 
= 2.58 and Standard deviation, 
= 0.75
Also, a random sample (n) of 110 households is taken.
Let Xbar = sample mean household size
The z score probability distribution for sample mean is give by;
Z = 
~ N(0,1)
So, probability that the sample mean household size is between 2.50 and 2.66 people = P(2.50 < Xbar < 2.66)
P(2.50 < Xbar < 2.66) = P(Xbar < 2.66) - P(Xbar 
2.50)
P(Xbar < 2.66) = P( < 
) = P(Z < -1.68) = 1 - P(Z 1.68)
= 1 - 0.95352 = 0.04648
P(Xbar 2.50) = P( 
) = P(Z -3.92) = 1 - P(Z < 3.92)
= 1 - 0.99996 = 0.00004
Therefore, P(2.50 < Xbar < 2.66) = 0.04648 - 0.00004 = 0.046
Ride ticket cost for per ticket is $2.5
and henry bought 15 tickets so in riding he spent $2.5×15 - $ 37.50= $18
(a) And as according to question he spent a total of $55.50 at the fair. Henry spent his money only on ride tickets and fair admission.
So for fair admission he spent
$55.50 -$37.50
HOPE. IT HELPS YOU.
Answer:
i thnk is 239.213
Step-by-step explanation:
If one of them is wrong it is because it is blury! sorry!
13) 72/100
Fine the length BC using the cosine law. Google the law and sub it in
