Mathematics, 11.03.2021 01:50 desderievelasquez
A survey was taken of students in math classes to find out how many hours per day students spend on social media. The survey results for the first-, second-, and third-period classes are as follows:
First period: 2, 4, 3, 1, 0, 2, 1, 3, 1, 4, 9, 2, 4, 3, 0
Second period: 3, 2, 3, 1, 3, 4, 2, 4, 3, 1, 0, 2, 3, 1, 2
Third period: 4, 5, 3, 4, 2, 3, 4, 1, 8, 2, 3, 1, 0, 2, 1, 3
Which is the best measure of center for first period and why? (5 points)
Question 4 options:
1)
Mean, because there are no outliers that affect the center
2)
Median, because there is 1 outlier that affects the center
3)
Interquartile range, because there is 1 outlier that affects the center
4)
Standard deviation, because there are no outliers that affect the center
Answers: 3
Mathematics, 21.06.2019 16:50, gesic2003
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
Answers: 3
Mathematics, 21.06.2019 18:00, BlueExorcistReaper
Solve 2^x=32 and rewrite this equation in a logarithmic form
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Mathematics, 21.06.2019 19:20, sierravick123owr441
Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?
Answers: 1
Mathematics, 21.06.2019 21:10, benallyadam2067
Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!
Answers: 1
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