<span>6/10x^2 ÷ 6/10x3 - 60x2
= 6/10x^2 * 10/6x^-3 </span>- 60x2<span>
= x^5 - 60x^2</span>
2x is twice a number. sum means to add, so 2x+13=75
2x=62
x=31
Answer:
The probability of a random unit is deemed faulty if it scores below 320.
P( X < 320 ) = 0.0505
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given mean of the Population 'μ' = 374
Variance of the Population σ² = 1090
Standard deviation of the Population 'σ ' = √1090 = 33.01
Given 'X' be a random variable in normal distribution
Z = - 1.64
The probability of a random unit is deemed faulty if it scores below 320.
P( X < 320 ) = P( Z < - 1.64 )
= 1- p(Z > 1.64)
= 1 - ( 0.5 + A(1.64)
= 0.5 - 0.4495
= 0.0505
The probability of a random unit is deemed faulty if it scores below 320.
P( X < 320 ) = 0.0505
Answer:
c
Step-by-step explanation:
I believe its c I've done this last semester