In a normal distribution, ____________ of the data values lie within ____________
standard deviation
s of the mean.
Group of answer choices
95 %
———— 1
50 %
———— 3
68 %
———— 2
99.7 %
———— 3
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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 ————
median
———— 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
400
950
550
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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