1
Q
- A recent survey of a sample of 250 High School students reported the average weight of 54.3 kg. Is the statement describing a parameter or statistic?
A
STATISTIC
2
Q
- Average age of students in Northills College of Asia, Labo Campus. Is the statement describing a parameter or statistic?
A
PARAMETER
3
Q
- Classify random variable as Discrete Random Variable or Continuous Random Variable: Scores of a student in a 10 - item test.
A
DISCRETE RANDOM VARIABLE
4
Q
- Classify random variable as Discrete Random Variable or Continuous Random Variable: Duration (in minutes) of a movie that does not exceed 2 hours.
A
CONTINUOUS RANDOM VARIABLE
5
Q
- Classify random variable as Discrete Random Variable or Continuous Random Variable: Length (in cm) of a shoelace that is not longer than 2 meters.
A
CONTINUOUS RANDOM VARIABLE
6
Q
- Classify random variable as Discrete Random Variable or Continuous Random Variable: Number of pages a Statistics book has.
A
DISCRETE RANDOM VARIABLE
7
Q
- Classify random variable as Discrete Random Variable or Continuous Random Variable: Number of heads in 4 flips of a coin.
A
DISCRETE RANDOM VARIABLE
8
Q
- Determine the area BELOW z = 2.14
A
LEFTMOST: 2.1
TOPMOST: 0.04
INTERSECTION: 0.9838
9
Q
- Determine the area BELOW z = - 0.12
A
LEFTMOST: -0.1
TOPMOST: 0.02
INTERSECTION: 0.4522
10
Q
- Determine the area ABOVE z = - 1.64
A
LEFTMOST: -1.6
TOPMOST: 0.04
INTERSECTION: 0.0505
AREA: 1 - 0.0505 = 0.9495
11
Q
- Determine the area ABOVE z = 2.33
A
LEFTMOST: 2.3
TOPMOST: 0.03
INTERSECTION: 0.9901
AREA: 0.9901 = 0.0099
12
Q
- Find the area BETWEEN z = - 2.35 and z = 1.68
A
LEFTMOST: -2.3
:1.6
TOPMOST: 0.05
:0.08
INTERSECTION: 0.0094
:0.9535
AREA: 0.9535 -0.0094 = 0.9441
