Round the following numbers to the second decimal place. a. 46.137 b. 38.62500 c
ID: 3201395 • Letter: R
Question
Round the following numbers to the second decimal place.
a. 46.137 b. 38.62500 c. 83.76500 d. 54.0130 e. 72.69502
2. Determine the value of the following expressions in which C = 2.
Participant
X score
Y score
1
4
7
2
6
4
3
5
3
4
8
9
5
7
6
6
9
5
3. For each of the following, indicate the scale of measurement.
number of pizzas eaten by students at various colleges and universities during final exam week
state in which a person was born
assessed value of houses measured against (i.e., in reference to) the average cost of a house
ranking cars from most likely to be stolen to least likely to be stolen
4. For each of the following numbers, indicate the real (true) limits.
a. 2 b. 4.6 c. .732 d. 2.0 e. 2.00 f. – 4 g. – 3.599
5. For the following, indicate if the variable in italics is continuous or discontinuous.
The percentage of unemployed people in each county in Michigan last month.
The weights of players on a football team.
The credit hours accumulated by college students attending a school in Michigan last year.
d. The number of homes in each state that have been sold in the past year.
6. Identify the independent and dependent variables in each of the following examples.
The number of strikes per game was recorded for individuals who use hard rubber vs. plastic bowling balls.
A researcher investigated the effect of cigarette smoking on the incidence of sleep apnea.
Participant
X score
Y score
1
4
7
2
6
4
3
5
3
4
8
9
5
7
6
6
9
5
'Ex .' a2:s +'t1 rew lk H:re::-,Explanation / Answer
1) a. 46.137 b. 38.62500 c. 83.76500 d. 54.0130 e. 72.69502
Rounding the following numbers to the second decimal place gives
a) 46.14 b) 38.62 c) 83.76 d) 54.01 e) 72.70
2) Question unclear
3) number of pizzas eaten by students at various colleges and universities during final exam week
---Ratio (as it is numeric and they can be compared)
state in which a person was born
--- Nominal (as it is a name)
assessed value of houses measured against (i.e., in reference to) the average cost of a house
---Ratio (as it is numeric and they can be compared)
ranking cars from most likely to be stolen to least likely to be stolen
--ordinal (as they are just ranks and can't be compared)
5) a)continuous b) discontinuous c)continuous d) discontinuous.
6) a) independent - type of ball , dependent - number of strikes per game
b) a) independent - cigarette smoking , dependent - incidence of sleep apnea
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