About 13 out of 100 people are left handed. How many people would you expect to be left handed out of 1500?
1 answer:
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Answer:
And we can calculate the mean with the following formula:
We can calculate the sample variance with this formula:
And the sample deviation would be given by:
Step-by-step explanation:
For this case we have the following data given:
7.9 9.7 9.7 8.7 7.0 7.2 11.3 11.8 7.3 8.1 8.0 11.6 6.8 9.0 6.3 7.0 7.4 8.7 6.8 5.8 7.8 7.7 6.3 7.0 7.7 6.5 10.7
Our variable of interest is given by X="flexural strength (MPa) for concrete beams of a certain type"
And for this case we know that
And we can calculate the mean with the following formula:
We can calculate the sample variance with this formula:
And the sample deviation would be given by: