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ycow [4]
3 years ago
14

Find the indicated probability by using the complementation rule. A percentage distribution is given below for the size of famil

ies in one U.S. city. Size Percentage 2 39.9 3 24.4 4 20.1 5 10.8 6 3.3 7 1.5 A family is selected at random. Find the probability that the size of the family is 4 or more. Round results to three decimal places.
a. 0.156
b. 0.844
c. 0.357
d. 0.201
Mathematics
1 answer:
arlik [135]3 years ago
7 0

Answer:

The correct option is c.

Step-by-step explanation:

The percentage probability distribution is:

Size (X)      Percentage

 2                   39.9

 3                   24.4

 4                   20.1

 5                   10.8

 6                    3.3

 7                     1.5

Total             100.0

Compute the probability that the size of the family is 4 or more as follows:

P (X ≥ 4) = P (X = 4) + P (X = 5) + P (X = 6) + P (X = 7)

              = 0.201 + 0.108 + 0.033 + 0.015

              = 0.357

Thus, the probability that the size of the family is 4 or more is 0.357.

The correct option is c.

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Tresset [83]

Given data:

The given table.

The expression for the average temperature is,

\begin{gathered} 86^{\circ}F=\frac{84^{\circ}F+92^{\circ}F+79^{\circ}F+x+82^{\circ}F+93^{\circ}F}{6} \\ 516^{\circ}F=430^{\circ}F+x \\ x=86^{\circ}F \end{gathered}

Thus, the value of x is 86 degree Fahrenheit.

7 0
1 year ago
What are the coordinates of point G of the pre-image? (-2, 1) (-4, 2) (-12, 0) (-32, 16)
vredina [299]

Answer:

(-12,0)

Step-by-step explanation:

(-12,0)

(-4,2)

3 0
3 years ago
29% of base is 26.5 This is a question about percentage not triangles or geometry
ser-zykov [4K]

Answer:

Around 91.38

Step-by-step explanation:

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2 years ago
A bag contains 6 red jelly beans, 4 green jelly beans, and 4 blue jelly beans.
worty [1.4K]
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There are 4 green jelly beans out of a total of 14 jelly beans.  The probability for the first bean would be 4/14.

Once the first jelly bean is removed, the probability that the second jelly bean would be red is 6/13 (the denominator decreases by 1 because of the first jelly bean that did not get put back).

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7 0
4 years ago
Read 2 more answers
Identify the surface area of the composite figure. HELP PLEASE!!
Novosadov [1.4K]

Answer:

Step-by-step explanation:

I've already done this question for you. You must be reposting it because the answer was not correct according to the way the computer was programmed to get the answer. I can only think that you don't count the interface between the cube and the larger figure at all. So let's do it that way.

Start with the cube.

The formal equation is Area = 5 * s^2

It has 5 equal sides each one measuring 3 * 3

Area = 5 * 3^2 =                                                                              45

Now go to the other figure

The front and back face measure 14*6*2                                = 168

Left and Right Sides are 2 * 6 * 8                                                 96

Top and Bottom              2 * 14 *8                                              224

Don't count the base of the cube at all so subtract 3*3             -9

Total                                                                                             524

If that does not work, please leave a note at the bottom of this question.

5 0
4 years ago
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