Answer:
20 songs
Step-by-step explanation:
you merely have to plug m = 2 into the equation and then solve for s
4.50m + .9s = 27.00
4.50(2) + .9s = 27.00
s = 20
Given that n = 18, then the degree of freedom is n - 1 = 17.
From the table of Chi Square
The value of
to the left for 95% confidence interval given a degree of freedom of 17 is 8.672
Answer:
The answer to your question is 2.6 in
Step-by-step explanation:
Data
width = ? in
width = 65 mm
Process
1.- To solve this problem, use proportions and cross multiplication
1 in ---------------------- 25.4 mm
x ---------------------- 65 mm
x = (65 x 1) / 25.4
2.- Simplification
x = 65 / 25.4
3.- Result
x = 2.6 in
Answer:
Mean = 16.5
Variance = 35.55
Step-by-step explanation:
<u> x P(x) x. P(x) x² x². P(x)</u>
6 0.10 0.6 36 3.6
12 0.35 4.2 144 50.4
18 0.25 4.5 324 81
<u> 24 0.30 7.2 576 172.8</u>
∑x P (x) 16.5 ∑x² P (x) 307.8
The expected value of x E[X] gives the mean where X is the discrete random variable with the given probabilities.
Mean is given by E(X)= ∑x P (x) = 16.5
Similarly the variance is also calculated using the expected value of X and X².
Variance is given= E(X)²- [E(X)]²= 307.8- (16.5)²= 307.8-272.25 = 35.55
Answer:
relationship between hypotenuse and perpendicular is given by sin angle
sin60=p/h
√3/2=a/16
√3/2×16=a
8√3=a
option C is your answer
