10. The cost of the electricity to keep the DVD rental machine on is $1.45 per day. Each DVD rental increases. the electricity cost by $0.02. What are the mean and standard deviation of the electricity cost per day? (a) Mean = $4.13, Standard Deviation = $0.84 (b) Mean = $4.13, Standard Deviation = $1.47 (c) Mean = $4.13, Standard Deviation = $2.29 (d) Mean = $2.68, Standard Deviation = $0.84bT g d) anorger boni p (e) Mean $2.68, Standard Deviation= $2.29 10 Suld no abasl 19amige odi tedi vilidede di 1s1
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![Tre the following for problems 9 and 10. The number of LDVDS rented daily at DVD rental machine has a ma
of 134 with a standard deviation of 42.il
o Select two days at random and find the difference in the number of DVDS rented on the two days. What al
the mean and standard deviation of the difference in the number of DVDS rented?
(a) Mean = 0, Standard Deviation =0
(b) Mean = 0, Standard Deviation = 84
(c) Mean = 0, Standard Deviation = 59
(d) Mean = 92, Standard Deviation = 42
(e) Mean = 134, Standard Deviation = 42
20.0
Sauounanos ei zaldainer molneT
उम पा्र् ध गीि
10. The cost of the electricity to keep the DVD rental machine on is $1.45 per day. Each DVD rental increases.
the electricity cost by $0.02. What are the mean and standard deviation of the electricity cost per day?
(a) Mean = $4.13, Standard Deviation = $0.84
(b) Mean = $4.13, Standard Deviation = $1.47
(c) Mean = $4.13, Standard Deviation = $2.29
ca(d) Mean $2.68, Standard Deviation = $0.84
(e) Mean $2.68, Standard Deviation= $2.29 1 uld no absl 19amine odt tedi vilidedoay disr
11. The literacy rate for a nation measures the proportion of people age 15 and over who can read and write.
The literacy rate for women in Afghanistan is 12%. Let X= the number of Afghani women you ask until one
says that she is literate. The mean and standard deviation of this distribution is closest to:
(a) Mean = 0.12, Standard Deviation = 0.0144
(b) Mean = 8.33, Standard Deviation =61.1
(c) Mean = 8.33, Standard Deviation = 7.82
(d) Mean = 1.14, Standard Deviation = 61.1
(e) Mean = 1.14, Standard Deviation = 7.82](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5abcbf60-d485-4461-88d0-26c4d37454a4%2F4025547f-6cc2-4e6d-b9df-b2a334e7fec0%2Fvpn3po_processed.jpeg&w=3840&q=75)
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10. The no. of DVD rented has a mean of 134 and standard deviation of 42
Electricity cost per day To keep the machine on is $1.45
each DVD rental increase electricity by $0.02
Let X be the no of DVD's rented per day
Let Y be the cost of electricity per day
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