Hello friends! Can anyone of you solve this? so please solve
1 answer:
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Answer:
a) So, she can expect a 2.4 calls per hour.
b) So, the standard deviation is 0.8.
Step-by-step explanation:
We know that probability model below describes the number of repair calls that an appliance repair shop may receive during an hour.
Repair Calls 1 2 3 4
Probability 0.1 0.5 0.3 0.1
a) We calculate how many calls should the shop expect per hour.
We get:
So, she can expect a 2.4 calls per hour.
b) We calculate the standard deviation:
So, the standard deviation is 0.8.
Answer: $15.25
Step 1: Multiply by 2 (for 2 steaks)
$6.10 x 2 = $12.20
Step 2: Find of $6.10 (for
pound)
$6.10 ÷ 2 = $3.05
Step 3: Add $3.05
$12.20 + $3.05 = $15.25
Answer = $15.25