SaiBook.us Statistics

Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Probability distribution function of discrete random variable

Grade: 9-a Lesson: S4-L1

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the five problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: in Class

Problem Id	Problem	Options
1	A discrete random variable X whose probability distribution function is \$P(X=x) = x^2 / 20,\$ x∈{1, 2, 3, 4} .Calculate the probability that X≤2.	A) 0.96 B) 0.13 C) 2.5 D) 0.25
2	A discrete random variable X has a probability distribution function defined as:\$P(X=x) = x^2/k\$ where: x={1, 2, 3}.Find P(X=3)	A) 0.23 B) 0.64 C) 0.35 D) 0.43
3	From the given data,Find the value of P(X≤6) $3$	A) 0.51 B) 0.49 C) 0.23 D) 0.68
4	From the given data,Find the value of P(X>2) $4$	A) 0.45 B) 0.97 C) 0.57 D) 0.42
5	The random variable X has a probability distribution P(X) of the following form,where k is some number: $5$ Find P(X<5)	A) 0.34 B) 0.75 C) 0.21 D) 0.53

Problem Id

Problem

Options

A discrete random variable X whose probability distribution function is \$P(X=x) = x^2 / 20,\$ x∈{1, 2, 3, 4} .Calculate the probability that X≤2.

A) 0.96
B) 0.13
C) 2.5
D) 0.25

A discrete random variable X has a probability distribution function defined as:\$P(X=x) = x^2/k\$ where: x={1, 2, 3}.Find P(X=3)

A) 0.23
B) 0.64
C) 0.35
D) 0.43

From the given data,Find the value of P(X≤6) $3$

A) 0.51
B) 0.49
C) 0.23
D) 0.68

From the given data,Find the value of P(X>2) $4$

A) 0.45
B) 0.97
C) 0.57
D) 0.42

The random variable X has a probability distribution P(X) of the following form,where k is some number: $5$
Find P(X<5)

A) 0.34
B) 0.75
C) 0.21
D) 0.53