# SUMMATIVE TEST 1 STATISTICS_Q3

## Quiz by jeneth Sobrevega

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10 questions
• Q1

Which of the following is an example of Continuous Variable?

Goldilocks bought 50 bags of flour

Number of students in San Juan NHS

The normal level of Magat Dam is 180 meters

Johann bought 20 cans of cooking oil

30s
• Q2

If two coins are tossed, which is not a possible value of the random variable for the number of heads?

0

3

2

1

30s
• Q3

What is the probability that a filipino takes a bath 3 times a day? please see the photo for reference.

0.25

0.1

0.33

0.75

30s
• Q4

It is a numerical quantity that is assigned to the outcome of an experiment.

Probability Distribution

Probability

Random Variable

Variable

30s
• Q5

It is the central or average of its corresponding probability mass function.

Standard Deviation

Probability

Variance

Mean

30s
• Q6

What are two values that describe how scattered or spread out the scores are from the mean value of the random variable?

mean and probability distribution

probability and statistics

probability and statistics

variance and standard deviation

30s
• Q7

The random variable X, representing the number of nuts in a chocolate bar has the following probability distribution. What is the mean?

1.7

1.3

1.5

1.9

30s
• Q8

The probabilities that a printer produces 0,1,2, and 3 misprints are 42%, 28%, 18%, and 12% respectively. What is the mean value of the random variable?

2

3

4

1

30s
• Q9

What is the standard deviation?

Standard Deviation = 3.24

Standard Deviation = 2.24

Standard Deviation = 3.24

Standard Deviation = 3.24

30s
• Q10

What is the Variance

.Variance = 5

Variance = 4

Variance = 4

Variance = 4

30s

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