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hichkok12 [17]
3 years ago
13

statistics : 1. Here are the average temperatures in Houston, TX for each month in 2014 (measured in oF): please answer the ques

tions on the image below

Mathematics
2 answers:
Bad White [126]3 years ago
5 0
A. Range=highest-lowest. 85-53=32
b. Mean=average. Add all of the numbers together then divide by 12, you get about 70.2
c. Median is the middle number, or average of middle 2 numbers. average of 63 and 70 is 66.5.
d. There are 5 months with temperature less than 70, so the chance is 5/12
Vilka [71]3 years ago
4 0

Answer:

32, 72.2

Step-by-step explanation:

range= subtract max-min

mode=  the one that appears the more

median: number in the middle

mean= average

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3 years ago
What expression uses the associative property to make it easier to evaluate 6(1/ x 7/5)
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2 years ago
A random sample of 225 individuals working in a large city indicated that 45 are dissatisfied with their working conditions. Bas
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Answer:

CI 90 %  =  [  0,165  ;  0,235 ]

Lower limit     0,165

upper limit      0,235

Step-by-step explanation:

Sample information:

sample size    n  =  225

number of dissatisfied  individuals   x  =  45

p = 45/225

p = 0,2    and  q =  1 -  p   q  =  1  -  0,2   q  =  0,8

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90 % of Confidence Interval   then a significance level is  α  = 10%

α  =  0,1 in z table we get z(c) for that significance level

z(c) = 1,28

CI 90 %   =  [  p  ±  z(c)*√(p*q)/n ]

z(c) * √(p*q)/n    =  1,28 *  √ ( 0,2*0,8)/225

z(c) * √(p*q)/n    =  1,28 * 0,027

z(c) * √(p*q)/n    =  0,035

CI 90 %  =  [  0,2  ±  0,035 ]

CI 90 %  =  [  0,165  ;  0,235 ]

Lower limit     0,165

upper limit      0,235

3 0
3 years ago
3. In What Year Did Mary Have 10 Stamps Her Collection?
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In 2005 Mary had 10 stamps in her collection
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