1/12
There is 1 side of the die that has a ten on it and 12 sides in total. Therefore, there is a 1/12 chance of rolling a ten on this die.
Answer:
I believe the answer is c
Step-by-step explanation:
Answer:
n^2-8n+5
Step-by-step explanation:
Answer:
a) Mean is -23.47
b) Variance is 206.59
c) standard deviation is 14.37
Step-by-step explanation:
Given that;
x −41 −27 −8 −3
P(X = x) 0.29 0.35 0.21 0.15
X.P -11.89 -9.45 -1.68 -0.45
a) mean
Mean = ∑X.P = -11.89 + -9.45 + -1.68 + -0.45
Mean = -23.47
b) the variance
E(x²) = ∑x²P(X=x)
= (−41²×0.29) + (−27²×0.35) + (−8²×0.21) + (−3²×0.15)
= 487.49 + 255.15 + 13.44 + 1.35
= 757.43
So
Var(X) = E(x²) - [∑X.P]²
Var(X) = 757.43 - [-23.47]²
= 757.43 - 550.8409
= 206.5891 ≈ 206.59
Therefore Variance is 206.59
c) standard deviation
standard deviation SD(X) = √Var(X)
SD(X) = √206.5891
= 14.3732 ≈ 14.37
Therefore standard deviation is 14.37
Answer:
The Price of clothes after 15 % off is $ 19.55
Step-by-step explanation:
Given as :
The price of clothes = $ 23
The discount as a prize given on price of clothes = 15%
So , The discounted price = $ 23 - 15% of $ 23
Or, The discounted price = $ 23 × ( 
)
Or, The discounted price = $ 23 × 
Or, The discounted price = $ 23 × 0.85
∴ The discounted price = $ 19.55
Hence The Price of clothes after 15 % off is $ 19.55 Answer
