Since the values are equally likely and equally spaced, their mean is the middle one.
the mean is 1/5
The variance is the average of the square of the deviations from the mean.
σ² = (1/3)((-1/10)² + 0² + (1/10)²) = 2/300
the variance is 2/300
Answer:
Randy: 38.25
Step-by-step explanation:
J 4×12.75= 51
R 3×12.75= 38.25
K 1×12.75= 12.75
51+38.25+12.75=102
Answer: Aaron would need 3.9375 cups of food
Step-by-step explanation: SImply, just multiply 10.5 by .375. And you get 3.9375.
Answer:
i believe your answer is B hope this helps
Step-by-step explanation:
:)
Answer:
Larger number = 30
Smaller number = 8
Step-by-step explanation:
Let x = larger number
Let y = smaller number
x + y = 38 ————> (1)
x = y + 22 ————> (2)
Substitute for x using first equation
(y + 22) + y = 38
2y + 22 = 38
2y = 16
y = 8
Substitute for y using second equation
x = 8 + 22
x = 30
I hope this helped and please mark me as brainliest!
