stat quiz please answer

In a normal distribution, ____________ of the data values lie within ____________

standard deviation

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s of the mean.

Group of answer choices

95 %

———— 1

50 %

———— 3

68 %

———— 2

99.7 %

———— 3

Flag this Question

Question 25 pts

The Empirical Rule applies to ____________ distributions, whereas Chebyshev’s Rule applies to ____________ distributions.

Group of answer choiceschart ———— graphical

normal ———— all

random ———— average

frequency ———— linear

Flag this QuestionQuestion 35 pts

The ____________ normal distribution has the largest mean. The ____________ normal distribution has the largest standard deviation.

Group of answer choicesred ———— blue

blue ———— blue

blue ———— red

red ———— red

Flag this QuestionQuestion 45 pts

In a ____________ distribution, ____________ data values are ____________.

Group of answer choicesfrequency ———— categorical ———— continuous

random ———— grouped ———— increasing

normal ———— all of the ———— qualitative

normal ———— 50 % of the ———— less than the mean

Flag this QuestionQuestion 55 pts

In a normal distribution :

Group of answer choicesMean = Mode ? Median

Mean = Median ? Mode

Mean = Median = Mode

Median = Mode ? Mean

Flag this QuestionQuestion 65 pts

The ____________ under the ____________ of a normal distribution is always ____________.

Group of answer choicesvariance ————


———— symmetric

area ———— graph ———— 100 %

trend line ———— mean ———— positive

outlier ———— chart ———— random

Flag this QuestionQuestion 75 pts

For a normally distributed set of values with a mean of  80  and a variance of  16,  approximately  68 %  of the values fall between ____________ and ____________.

Group of answer choices48 ———— 112

72 ———— 88

76 ———— 84

64 ———— 96

Flag this QuestionQuestion 85 pts

In a normal distribution, the mean is  200  and standard deviation of  10.  Then, about ____________ of data values fall between ____________ and ____________.

Group of answer choices99.7 % ———— 180 ———— 220

50 % ———— 100 ———— 150

95 % ———— 190 ———— 230

68 % ———— 190 ———— 210

Flag this QuestionQuestion 95 pts

In a normal distribution with mean of  100  and a standard deviation of  5 , what percentage of data values are bigger than  105 ?

Group of answer choices32 %

95 %

16 %

68 %

Flag this QuestionQuestion 105 pts

A normally distributed data set has a mean of  15  and a standard deviation of  3.  Then, about  95 %  of the data values fall between ____________ and ____________.

Group of answer choices12 ———— 18

6 ———— 24

3 ———— 15

9 ———— 21

Flag this QuestionQuestion 115 pts

In a normal distribution with mean of  100  and a standard deviation of  5  , what percentage of data values are between  90  and  110  ?

Group of answer choices68 %

50 %99.7 %95 %

Flag this QuestionQuestion 125 pts

A normal distribution has a mean of  25  and a standard deviation of  3.  Then, about ____________ of data values fall between ____________ and ____________.

Group of answer choices95 %

———— 16 ———— 31

99.7 % ———— 16 ———— 34

95 % ———— 25 ———— 31

68 % ———— 22 ———— 25

Flag this QuestionQuestion 135 pts

A normal distribution has a mean of  100  and a standard deviation of  10.  What percent of data values lie between  80  and  120  ?

Group of answer choices95 %99.7 %

34 %

68 %

Flag this QuestionQuestion 145 pts

In a data set,  Q1  =  700,  Q2  =  720  and  Q3  =  800.  Then the value  430  is ____________.

Group of answer choices

not an outlier

an extreme outlier

a mild outlier

a fence

Flag this QuestionQuestion 155 pts

If a data value  x  lies between the lower and upper fences, then  x  is ____________.

Group of answer choicesnot an outlier

a boxplot

a mild outlieran extreme outlier

Flag this QuestionQuestion 165 pts

In a data set,  Q1  =  700,  Q2  =  720  and  Q3  =  800.  Then the value  935  is ____________.

Group of answer choicesnot an outliera mild outlieran extreme outliera fence

Flag this QuestionQuestion 175 pts

In a data set,  Q1  =  700,  Q2  =  720  and  Q3  =  800.  Then the extreme lower fence is equal to ____________.

Group of answer choices1,100




Flag this QuestionQuestion 185 pts

In a data set,  Q1  =  700,  Q2  =  720  and  Q3  =  800.  Then the value  120  is ____________.

Group of answer choicesa fence

a mild outliernot an outlieran extreme outlier

Flag this QuestionQuestion 195 pts

The Five Number Summary does NOT contain the ____________.

Group of answer choicesfirst quartile

standard deviationmedian

maximum value

Flag this QuestionQuestion 205 pts

A ____________ is a graphical display of the ____________.

Group of answer choicesscatter plot ———— variance

z-score ———— empirical rule

boxplot ———— five number summary

normal distribution ———— outliers

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