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3 years ago

13

Find the sample variance and standard deviation for the following sample. Round the answers to two decimal places as needed. 16

23 19 36 17 15

1 answer:

steposvetlana [31]3 years ago

5 0

Answer:it would be 36 that’s the answer

Step-by-step explanation:

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1) A searchlight is mounted on the front of a search and rescue helicopter. The pilot is

julia-pushkina [17]

561 cm because if you do the math mc = square you get that answr your welcome

3 0

3 years ago

All interns for Comcast are required to be tested for drug use. The imperfect test gives positive results (indicating drug use)

lakkis [162]

Answer:

0.0224 or 2.24%

Step-by-step explanation:

The probability that an intern uses drugs, given that the test is negative, is determined by the probability of false negative divided by the probability of a negative (true or false).

A false negative occurs when an intern who uses drugs (10%) takes the test and gets a negative. Since the test gets it right 80% of the time, the probability of this happening is:

$P(FN) = 0.10*(1-0.80)=0.02$

A true negative occurs when an intern who does not use drugs (90%) takes the test and gets a negative. Since the test gets it wrong 3% of the time, the probability of this happening is:

$P(TN) = 0.90*(1-0.03)=0.873$

Therefore, the probability that an intern uses drugs, given that the test is negative is:

$P(D|N) = \frac{P(FN)}{P(FN)+P(TN)} \\P(D|N) = \frac{0.02}{0.02+0.873} \\P(D|N) = 0.0224 = 2.24\%$

The probability is 0.0224 or 2.24%.

6 0

3 years ago

Read 2 more answers

I will make u the BRAINLIEST pls answer my question and explain!!!

Whitepunk [10]

The azalea is located at point (4, -4). You have already plotted the hydrangea at (4, 6). If you count up the number of squares from the hydrangea to the azalea plant, you will get a distance of 10.

Since the problem tells you the length of each square is 1 ft, then you know that the distance between the two plants is 10 squares * 1 ft/square = 10ft.

8 0

3 years ago

Solve the following system by the substitution method. Check the solution.

harina [27]

$\left \{ {{3x + 6y = 4x} \atop {x = 8- 2y}} \right.$

$\left \{ {{3x- 4x + 6y = 0} \atop {x = 8 - 2y}} \right.$

$\left \{ {{-x + 6y = 0} \atop {x=8 - 2y}} \right.$

$\left \{ {{-(8-2y) + 6y} \atop {x=8 - 2y}} \right.$

$\left \{ {{-8+2y +6y = 0} \atop {x=8 - 2y}} \right.$

8y = 8
y = 1

x = 8-2y
x = 8-2*1
x = 8-2
x = 6

<span>A.
The system has a single solution. The solution set is (6, 1)</span>

4 0

3 years ago

Determine the solution to the system of equations graphed below and explain your reasoning complete sentences: glx) = -2x - 3 f(

ArbitrLikvidat [17]

Answer:

I hope it helps you

<h2><em>PLEASE MARK ME BRAINLIEST </em></h2>

4 0

2 years ago