Sal worked as a computer coder for $35.15 per hour. He worked 6 hours per day for 10 days. How much did Sal earn?
1 answer:
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Answer:
14.69 seconds
Step-by-step explanation:
The weighted mean is used to calculate the mean of numbers which don't have the same "weight" or statistical relevance. In this case, that relevance is based on the sample size of each group from which the mean reaction times were obtained.
For all three samples, the weighted mean is obtaining by multiplying each one of the mean reaction times by its <em>n value, </em>adding them, and dividing that result by the sum of all n values.
Answer:
10
Step-by-step explanation:
Set up a proportion:
Do cross multiple. 15 x 2 = 30, 30 divided by 3 = 10.