Answer:
- 3 large boxes
- 9 small boxes
Step-by-step explanation:
The purchase can be grouped into groups containing one large box and 3 small boxes. Then each group will have 12 +3·6 = 30 granola bars.
Since 90 bars were purchased, the camp bought 90/30 = 3 groups of boxes of bars.
They purchased 3 large boxes and 9 small boxes of bars.
60 W = 0.06 kW
Lifetime = 0.06 kW * 190 h = 11.4 kWh
The lifetime of the bulb is 11.4 kWh, or kilowatt-hours
So he would have to pay the first and last months rent so you would take 425*2=850. And then 50% of 425 would be 212.50. So all together he would be paying $1062.50 to move in. I hope this helps :)
Answer:
(a) The expected score is 12.8
(b) The standard deviation is 3.2 and variance is 10.24
Step-by-step explanation:
Consider the provided information.
You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.
Here n=64 p=1/5 and q=1-1/5=4/5
Part (a) we need to find the expected score on the exam.
Expected = np
Expected score = number of questions × P(right)

Hence, the expected score is 12.8
Part (b) Compute the variance and standard deviation of x.
Standard Deviation: 
Now calculate the standard deviation as shown:



Variance: 



Hence, the standard deviation is 3.2 and variance is 10.24