Mathematics, 17.12.2020 16:50 achewitt4147
When Jack runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard deviation of 1 second. If Jack were to run 20 practice trials of the 400 meter dash, how many of those trials would be faster than 66 seconds, to the nearest whole number?
Answers: 3
Mathematics, 21.06.2019 17:30
Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.
Answers: 1
Mathematics, 21.06.2019 20:30
I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank
Answers: 2
Mathematics, 21.06.2019 22:30
Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y
Answers: 2
Mathematics, 21.06.2019 23:00
How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f
Answers: 1
When Jack runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 se...
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