At a "busy time," a telephone exchange is very near capacity, so callers have difficulty placing their calls. It may be of interest to know the number of attempts necessary in order to make a connection. Suppose that we let p = 0.05 be the probability of connection during a busy time. We are interested in knowing the probability that 5 attempts are necessary for a successful call. Determine the correct parameter.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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At a “busy time," a telephone exchange is very near capacity, so callers have difficulty placing
their calls. It may be of interest to know the number of attempts necessary in order to make a
connection. Suppose that we let p = 0.05 be the probability of connection during a busy time.
We are interested in knowing the probability that 5 attempts are necessary for a successful call.
Determine the correct parameter.
O a.r= 0, x = 5
O b. NONE
O C.r= 0, n = 5
d.r = 1, x = 5
Transcribed Image Text:At a “busy time," a telephone exchange is very near capacity, so callers have difficulty placing their calls. It may be of interest to know the number of attempts necessary in order to make a connection. Suppose that we let p = 0.05 be the probability of connection during a busy time. We are interested in knowing the probability that 5 attempts are necessary for a successful call. Determine the correct parameter. O a.r= 0, x = 5 O b. NONE O C.r= 0, n = 5 d.r = 1, x = 5
In the cumulative distribution example below, P(X = 3/8) is equivalent to, 1 – P(X < 3/8).
3-52. + The thickness of wood paneling (in inches) that a
customer orders is a random variable with the following cumu-
lative distribution function:
[o
x<1/8
0.2
F(x)=-
1/85x<1/4
0.9 1/4sx<3/8
3/85x
Determine the following probabilities:
(a) P(X<1/18) (b) P(X<1/4)
(d) P(X >1/4) (e) P(X<1/2)
(c) P(X55/16)
- Plx: /8) = 0.20
(14) - P(x: V4) - 0.70
f//8) = P(x: %R) = 0. 10
True
O False
Transcribed Image Text:In the cumulative distribution example below, P(X = 3/8) is equivalent to, 1 – P(X < 3/8). 3-52. + The thickness of wood paneling (in inches) that a customer orders is a random variable with the following cumu- lative distribution function: [o x<1/8 0.2 F(x)=- 1/85x<1/4 0.9 1/4sx<3/8 3/85x Determine the following probabilities: (a) P(X<1/18) (b) P(X<1/4) (d) P(X >1/4) (e) P(X<1/2) (c) P(X55/16) - Plx: /8) = 0.20 (14) - P(x: V4) - 0.70 f//8) = P(x: %R) = 0. 10 True O False
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