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Vera_Pavlovna [14]
3 years ago
5

In a sample of 2016 U.S. adults, 242 said Richard Nixon was the worst president since World War II. Three U.S. adults are select

ed at random without replacement. (Adapted from Harris Interactive) (a) Find the probability that all three adults say Richard Nixon was the worst president since World War II. (b) Find the probability that none of the three adults say Richard Nixon was the worst president since World War II. (c) Find the probability that at most two of the three adults say Richard Nixon was the worst president since World War II. (d) Which of the events can be considered unusual? Explain.
Mathematics
1 answer:
Andru [333]3 years ago
6 0

Answer:

<u><em>note:</em></u>

<u><em>solution is attached in word form due to error in mathematical equation. furthermore i also attach Screenshot of solution in word due to different version of MS Office please find the attachment</em></u>

Download docx
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What is the value of X?<br><br> What is the value of Y?<br><br> What is the value of Z?
baherus [9]

Answer:

The answer is

x = 12 \\ y = 20 \\ z = 15

Step-by-step explanation:

By using Pythagoras low

Then we can find that

{y}^{2}  =  {x}^{2}  +  {16}^{2}  \\  {z}^{2}  =  {x}^{2}   +  {9}^{2} \\  {y}^{2}   +  {z}^{2}  =  {25}^{2} \\  then \\  {x}^{2}  +  {9}^{2}  +  {x}^{2}  +  {16}^{2}  =  {25}^{2}  \\ 2 {x}^{2}  = 288 \\ x = 12 \\ By  \: substituting \:  x \:  into  \: the  \: previous \:  equations \\ then \:  \\ y = 20 \\ z = 15

7 0
3 years ago
Read 2 more answers
Find the GCF of the following monomials.<br><br> -50m4n7 and 40m2n10
Dima020 [189]

Answer:

Assuming you are asking for the Greatest Common Factor (GCF) of -50m^4n^7 and 40m^2n^{10} the answer is:

10m^2n^7

Step-by-step explanation:

To find the GCF we should first find the GCF of the coefficients 50 and 40 which is 10.

After factoring that out we need to take a look at the variable m. In monomial 1 we see that the highest exponent of m is 4 and in the second is 2. When finding GCF we take the smallest of the two exponents which is 2. Therefore the next part of our GCF monomial is m²

If we apply the same rule for n the smallest exponent is 7 resulting in the appending of n^{7} to the answer

After combining each of these GCF of 40 and -50 (10), m^4 and m² (m²), and n^7 and n^10 (n^7) the answer is:

10m^2n^7

7 0
3 years ago
Find the slope of the perpendicular line y+1/4x=-6
MrMuchimi
The slope would be 4
5 0
3 years ago
VW = WX = YW = ZX = VX = view image attached thank youuu!
jeka57 [31]

Answer:

assuming this is a rectangle:

VW=31

WX=19

YW=36.36

ZX=18.18

VX=36.36

Step-by-step explanation:

VW=VX

VW=31

WX=VX

WX=19

YW^2=19^2+31^2

YW^2=361+961

YW^2=1322

YW=36.36

ZX=1/2VX

ZX=18.18

VX=YW

VX=36.36

3 0
3 years ago
The histogram shows the numbers of floors in several tall buildings in New york city A.10 B.11 C.41 D.55
scZoUnD [109]

Answer:

10 buildings

Step-by-step explanation:

<em>Incomplete question: Missing Attachment</em>

<em>I will answer your question with the attached histogram</em>

<em></em>

Required

Determine the number of tall buildings that had more than 60 floors

The histogram can be interpreted as follows:

\begin{array}{cccccc}{Floors} & {1-20} & {21-40} & {41-60} & {61-80} \ \\ {Buildings} & {10} & {5} & {15} & {10} \ \end{array}

More than 60 floors is represented with the following group: 61 - 80

The frequency of group 61 - 80 is 10

<em>Hence, 10 buildings had more than 60 floors</em>

3 0
3 years ago
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