Mathematics, 24.04.2020 18:46 statonglenda
A set of middle school students' heights are normally distributed with a mean of 150 centimeters and a standard deviation of 20 centimeters. Jordan is a middle school student with a height of 161.4 centimeters.
What percentage of students' heights are lower than Jordan's height?
Answers: 2
Mathematics, 21.06.2019 20:10
Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36
Answers: 1
Mathematics, 21.06.2019 22:20
(b) suppose that consolidated power decides to use a level of significance of ฮฑ = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is xโฏโฏ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume ฯ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)
Answers: 2
Mathematics, 22.06.2019 01:00
Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080โ30 feet wide and 500โ20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580โ40 feet b. 5,320โ5 feet c. 3,160โ20 feet d. 10,640โ5 feet
Answers: 3
Mathematics, 22.06.2019 04:00
The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at , ( 59,60,61,62) and the third quartile would be drawn at . (61,62,63,64)
Answers: 2
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