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SDS 306 Homework | Questions with Verified Answers

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Module
SDS 306

Institution
SDS 306

SDS 306 Homework | Questions with Verified Answers The State Education Department requires local school districts to keep these records on all students: age, race or ethnicity, days absent, current grade level, standardized test scores in reading and mathematics. What type of variable is current ...

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Institution SDS 306
Module SDS 306

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SDS 306 Homework

The State Education Department requires local school districts to keep these records on
all students: age, race or ethnicity, days absent, current grade level, standardized test
scores in reading and mathematics.

What type of variable is current grade level?
a. quantitative
b. identifier
c. categorical

The State Education Department requires local school districts to keep these records on
all students: age, race or ethnicity, days absent, current grade level, standardized test
scores in reading and mathematics.

What types of variable(s) are the standardized test scores in reading and mathematics?
a. categorical
b. quantitative
c. identifier

The State Education Department requires local school districts to keep these records on
all students: age, race or ethnicity, days absent, current grade level, standardized test
scores in reading and mathematics.

What type of variable is race or ethnicity?
a. categorical
b. identifier
c. quantitative

Age Group and Musical Preference
Pop: (Under 20) 133; (20-40) 119; (40+) 107
Rock/Alternative: (Under 20) 102; (20-40) 127; (40+) 74
Rap/Hip-Hop: (Under 20) 97; (20-40) 109; (40+) 75
Country: (Under 20) 52; (20-40) 107; (40+) 79
Jazz: (Under 20) 76; (20-40) 83; (40+) 95

What percentage of the sample primarily prefers Jazz?

a. 17.70%
b. 29.97%
c. 22.67%
d. 32.06%

,Age Group and Musical Preference
Pop: (Under 20) 133; (20-40) 119; (40+) 107
Rock/Alternative: (Under 20) 102; (20-40) 127; (40+) 74
Rap/Hip-Hop: (Under 20) 97; (20-40) 109; (40+) 75
Country: (Under 20) 52; (20-40) 107; (40+) 79
Jazz: (Under 20) 76; (20-40) 83; (40+) 95

What percentage of the sample is older than 40 years old?

a. 6.84%
b. 18.66%
c. 17.70%
d. 29.97%

Age Group and Musical Preference
Pop: (Under 20) 133; (20-40) 119; (40+) 107
Rock/Alternative: (Under 20) 102; (20-40) 127; (40+) 74
Rap/Hip-Hop: (Under 20) 97; (20-40) 109; (40+) 75
Country: (Under 20) 52; (20-40) 107; (40+) 79
Jazz: (Under 20) 76; (20-40) 83; (40+) 95

What percentage of those who prefer Rock/Alternative are between the ages of 20 and
40?

a. 33.665
b. 24.42%
c. 41.91%
d. 39.08%

Age Group and Musical Preference
Pop: (Under 20) 133; (20-40) 119; (40+) 107
Rock/Alternative: (Under 20) 102; (20-40) 127; (40+) 74
Rap/Hip-Hop: (Under 20) 97; (20-40) 109; (40+) 75
Country: (Under 20) 52; (20-40) 107; (40+) 79
Jazz: (Under 20) 76; (20-40) 83; (40+) 95

What percentage of the sample prefer Rock/Alternative and are between the ages of 20
and 40?

a. 8.85%
b. 6.31%
c. 10.76%
d. 3.84%

Age Group and Musical Preference
Pop: (Under 20) 133; (20-40) 119; (40+) 107

,Rock/Alternative: (Under 20) 102; (20-40) 127; (40+) 74
Rap/Hip-Hop: (Under 20) 97; (20-40) 109; (40+) 75
Country: (Under 20) 52; (20-40) 107; (40+) 79
Jazz: (Under 20) 76; (20-40) 83; (40+) 95

What is the marginal distribution of age group?

a. 560-604-271
b. 387-523-525
c. 460-545-430
d. 497-443-495

Age Group and Musical Preference
Pop: (Under 20) 133; (20-40) 119; (40+) 107
Rock/Alternative: (Under 20) 102; (20-40) 127; (40+) 74
Rap/Hip-Hop: (Under 20) 97; (20-40) 109; (40+) 75
Country: (Under 20) 52; (20-40) 107; (40+) 79
Jazz: (Under 20) 76; (20-40) 83; (40+) 95

What is the conditional distribution of age group for those who prefer Rap/Hip-Hop?

a. 14.46%, 35.67%, 49.87%
b. 27.81%, 41.77%, 30.42%
c. 9.19%, 38.67%, 52.14%
d. 34.52%, 38.79%, 26.69%

The age at which a person retires from their respective career.

a. Bimodal and skewed
b. Unimodal and symmetric
c. Bimodal and symmetric
d. Uniform
e. Unimodal and skewed

Height of students at a local area high school.

a. Bimodal and skewed
b. Unimodal and symmetric
c. Bimodal and symmetric
d. Uniform
e. Unimodal and skewed

The probabilities of drawing a diamond, heart, club, or spade from a traditional deck of
cards.

, a. Bimodal and skewed
b. Unimodal and symmetric
c. Bimodal and symmetric
d. Uniform
e. Unimodal and skewed
(Plymouth wind speeds)
Is the distribution unimodal, bimodal, multi-modal, or uniform?

a. unimodal
b. bimodal
c. multi-modal
d. uniform

(Plymouth wind speeds)
The distribution is symmetric.

a. true
b. false

(Plymouth wind speeds)
What does this mean?

a. No information can be determined
b. It is more likely to observe a wind speed between 4 and 13 knots
c. There are the same amount of observed wind speeds of 32 knots or higher as there
are number of observations 4 knots or lower

Calories in a 12 oz. beer
Beer: Calories
Heineken: 148
Miller Genuine Draft: 143
Newcastle Brown Ale: 138
Pabst Blue Ribbon: 145
Red Stripe: 151
Keystone Light: 104
Blue Moon: 164
Sam Adams Boston Lager: 170

What is the average calorie count for a 12oz bottle of beer?

a. 147.33
b. 116.3
c. 145.38
d. 150.66

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SDS 306 Homework | Questions with Verified Answers

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