1. A coffee shop wants to know the temperature of coffee that most people prefer

Question

1. A coffee shop wants to know the temperature of coffee that most people prefer, they ask their customers “Do you prefer coffee to be a lot colder, a little cooler, this temperature, a little warmer or a lot hotter?” and record the person’s response. Now, what is the level of measurement of the way they measured preferred temperature?

ANSWERS: A) ratio B) ordinal C) nominal D) interval

2. A state lottery involves the random selection of six different numbers between 1 and 26. If you select one six number combination, what is the probability that it will be the winning combination?

ANSWERS: A) 1/720 B) 1/165,765,600 C) 1/230,230 D) 1/308,915,776 E) None of these

3. Which of the following is a population parameter?

ANSWERS: A) B) C) s D) x¯

4. Suppose there are 33 classmates in our class. How many different teams of 5 are possible?

ANSWERS: A) 40920 B) 1107568 C) 474672 D) 118668 E) 237336 F) None of These

5. Select the true statement/s about the following sample data values. [57,65,61,58,62,55,58,56,60,56] ANSWERS:

A) s=194/15 B) s=8/37/5 C) x¯=96 D) None of These

6. A standard dice is rolled 4 times. How large is the sample space of possible outcomes.

ANSWERS: A. 720 B. 24

7. One of the 100 test subjects is selected at random. Given that the person selected approves of the mayor, what is the probability that they vote Democrat?

they vote Democrat?

SELECT ALL APPLICABLE CHOICES

ANSWERS: A) 0.14 B) 0.54 C) 0.259 D) 0.233 E) None of these

Explanation / Answer

2. A state lottery involves the random selection of six different numbers between 1 and 26. If you select one six number combination, what is the probability that it will be the winning combination?

Ans:

Total number of ways of selecting 6 numbers out of 26 is C(26,6) = 230230

Out of these only one combination is correct so the probability that it will be the winning combination is

ANSWERS: 1/230,230

3. Which of the following is a population parameter?

ANSWERS: A)

It is populaiton mean.

4. Suppose there are 33 classmates in our class. How many different teams of 5 are possible?

Total number of possible teams is C(33,3) = 237336

ANSWERS: E) 237336

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