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Sergio [31]
3 years ago
14

5) Suppose hospital employees are required to take lie detector tests. Suppose that the probability is 0.05 that the lie detecto

r concludes that a person is lying who, in fact, is telling the truth. Suppose that any pair of tests is independent.
a) What is the probability that the lie detector will conclude that each of three employees is lying when all are telling the truth?
b) What is the probability that the lie detector will conclude that at least one of three employees is lying when all are telling the truth?
Mathematics
1 answer:
Law Incorporation [45]3 years ago
4 0

Answer:

a)Binomial Problem with n = 3 and p = 0.05

P(all telling truth) = 0.05^3 = 0.000125

b) P(at least one true) = 1 - P(says zero are lying when all tell truth)

= 1 -0.95^3

= 0.1426

Step-by-step explanation:

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Answer:

y= -x/6-9

x= -6y-54

Step-by-step explanation:

7 0
2 years ago
Which of the following is NOT a monomial?<br> a. x-4<br> b. 22xy<br> c. 3<br> d. -11x
qwelly [4]
Answer is (a)
its a binomial
not a monomial
7 0
2 years ago
The number value of 2 in the number 4256​
Anastaziya [24]

Answer:

200

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Consider the expression. (StartFraction 2 m Superscript negative 1 baseline n Superscript 5 Baseline Over 3 m Superscript 0 Base
suter [353]

Answer:

The correct option is option (3) 4 ÷ 25.

Step-by-step explanation:

The expression in terms of <em>m</em> and <em>n</em> is:

F(m,n)=[\frac{2m^{-1}n^{5}}{3m^{0}n^{4}}]^{2}

Exponent rule of division:

a^{x}\div a^{y}=a^{x-y}

Compute the value of the expression for <em>m</em> = -5 and <em>n</em> = 3 as follows:

F(m,n)=[\frac{2m^{-1}n^{5}}{3m^{0}n^{4}}]^{2}

F(-5,3)=[\frac{2\csdot (-5)^{-1}\cdot (3)^{5}}{3\cdot (-5)^{0}\cdot (3)^{4}}]^{2}

             =\{\frac{2}{3}\times [(-5)^{-1-0}\times (3)^{5-4}}]\}^{2}\\\\=\{\frac{2}{3}\times \frac{-1}{5}\times 3\}^{2}\\\\=\{-\frac{2}{5}\}^{2}\\\\=\frac{4}{25}

Thus, the correct option is option (3) 4 ÷ 25.

8 0
3 years ago
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Bill found a book he wanted on sale for $20.80. The original price of the book was $32. Find the discount rate.
Maurinko [17]

Answer:

35% discount

Step-by-step explanation:

We can first find what percent of 32 20.80 is.

This can be shown by using a percent proportion.

\frac{20.80}{32} = \frac{x}{100}

We can cross multiply to find the value of x.

20.80\cdot100=2080\\\\2080\div 32 = 65

So 20.80 is 65% of 32.

However, this is the percent of the original price. To find the discount, we have to subtract 65 from 100.

100 - 65 = 35

So the book was on a 35% discount.

Hope this helped!

3 0
3 years ago
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