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:
B.
Step-by-step explanation:
Integers are any whole numbers that can be positive or negative.
Rational numbers are any numbers that can be expressed as a fraction such as an integer, whole number, or decimals.
Natural numbers include 1, 2, 3 etc.
(Extra fact: 0 is not a natural number :0)
Whole numbers are are numbers without fractions or decimals.
I hope this helps :)
There are two ways to confirm the identity.
Method 1
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Method 2
Answer:
35
Step-by-step explanation:
To find one part of five, divide 21 by 3, which gives you 7. Now multiply that 7 by five (to give you the full five parts) and you get 35.
Answer:
Step-by-step explanation:
k = 2h+9
h+16=k
h+16=2h+9
-h = -7
h = 7
hannah is 7 and kayla is 23
jacob is wrong because if u do 16*2+7 it’s 39 and 39-16 does not equal 16
