solve only 4 and 5 plz (1) Which of the following functions is a valid probability density function (p.d.f.)?f(x),f(x) 10.5-1(a)12(b)-1(c) f(x) ==, 0 2(a) ;(b)}(c)(d)3(4) The following table represents the price distribution of all different bags in a store. What arethe population and population size, respectively?(a) A bag, 65Price (S)Frequency2515 – 19.99(b) All bags in the store, 6520 – 24.9919(c) All bags in the store, not known25 – 29.991330 – 34.998(d) A bag, not known(5) 9 students are waiting in a line to get on the bus. Among them, 3 are close friends and insiston sticking together in the line. In how many ways can this line be formed?() C)(b) )-3!|×6!(с) 3!x6!(d) 3!×7!NIM

Answered: f(x) 0.5

Math

Statistics

f(x) 0.5

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Equations and inequalities describe the relationship between two mathematical expressions.

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Question

solve only 4 and 5 plz

(1) Which of the following functions is a valid probability density function (p.d.f.)?
f(x),
f(x) 1
0.5
-1
(a)
1
2
(b)
-1
(c) f(x) ==, 0 <x < 2
(d) f(x) = x², 1<x< 2
(2) The probabilities of events A, B and C in an experiment are 0.2, 0.68, and 0.1, respectively.
We know that event C belongs to A (C c A), and that B and C are independent. What is
P(AN Bn C)?
(а) 0.068
(b) 0.136
(c) 0.98
(d) 0.78
0,
x <-1
(3) F(x) =
**1,-1< x< 2 is a cumulative distribution function. What is P(0 < X < 2)?
9
1,
x > 2
(a) ;
(b)}
(c)
(d)
3
(4) The following table represents the price distribution of all different bags in a store. What are
the population and population size, respectively?
(a) A bag, 65
Price (S)
Frequency
25
15 – 19.99
(b) All bags in the store, 65
20 – 24.99
19
(c) All bags in the store, not known
25 – 29.99
13
30 – 34.99
8
(d) A bag, not known
(5) 9 students are waiting in a line to get on the bus. Among them, 3 are close friends and insist
on sticking together in the line. In how many ways can this line be formed?
() C)
(b) )-3!
|×6!
(с) 3!x6!
(d) 3!×7!
NIM

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