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MATH 110 ALL MODULES EXAMS
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MATH 110 ALL MODULES EXAMS/MATH 110 ALL MODULES EXAMS/MATH 110 ALL MODULES EXAMS
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MATH 110 ALL MODULES EXAMSMod 1 Exam 1
1.Define each of the following:
a) Observation
b) Element
c) Variable
Observation- all the information collected for each element in a study
Element- in a data set, the individual and unique entry about which data has been collected, analyzed and
presented in the same manner
Variable- a particular, measurable attribute that the researcher believes is needed to describe the element in
their study.
2.Explain outliers
An outlier is a value which is out of place compared to the other values. It may be too large or too small
compared to the other values
3.Look at the following data and see if you can identify any outliers:
53 786 789 821 794 805 63 777 814 2333 783 811 795 788 780
Outliers: 53 63 2333
4.
a) How many were burgers?
b) How many were fish?
a) Burgers, 2900(0.12)=348
b) Fish, 2900(0.28)=812
,Mod 2 Exam
1. During an hour at a fast food restaurant, the following types of sandwiches are ordered:
Turkey Turkey Cheeseburger Hamburger Fish Chicken
Hamburger Cheeseburger Fish Hamburger Turkey Fish Chicken
Chicken Fish Turkey Fish Hamburger Fish
Cheeseburger Fish Cheeseburger Hamburger Fish Fish
Cheeseburger Hamburger Fish Turkey Turkey Chicken Fish
Chicken Cheeseburger Fish Turkey Fish Fish Hamburger
Fish Fish Turkey Chicken Hamburger Fish Cheeseburger
Chicken Chicken Turkey Fish Hamburger Chicken Fish
a) Make a frequency distribution for this data.
b) Make a relative frequency distribution for this data. Include relative percentages on this table.
a.
b.
, 2. Consider the following data:
430 389 414 401 466 421 399 387 450 407 392 410
440 417 471
Find the 40th percentile of this data.
3. Consider the following data:
{29, 20, 24, 18, 32, 21}
a) Find the sample mean of this data.
b) Find the range of this data.
c) Find the sample standard deviation of this data.
d) Find the coefficient of variation.
a.
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