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iren [92.7K]
2 years ago
13

In a group of 101 students 40 are juniors, 50 are female, and 22 are female juniors. Find the probability that a student picked

from this group at random is either a junior or female.
a) 90/101
b) 22/101
c) 68/101
d) 40/101 ​
Mathematics
2 answers:
GREYUIT [131]2 years ago
5 0
I think it might be d
Goshia [24]2 years ago
4 0

Answer:

I would say A. as a best guess but the question is odd it does not add up to 101 students it adds up to 101 plus all of them are female juniors so they would be picked every time it would be 101/101

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Answer:

2.3328

Step-by-step explanation:

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3 years ago
Can sombody please help me with this math problem?
Molodets [167]

y=2/3y-3


1. y = 2/3 (9)-3   multiply 9 and 2 =18/3

 y=18/3-3 divide 18 and 3 =6

y=6-3 subt. 3

y=3



2.  -11=2/3x - 3

 -11+3 = 2/3 x   add 3 to both sides to cancel -3

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(3/2)-8 = (2/3)3/2 x multiply both sides by reciprical of 2/3

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4 0
3 years ago
The Wind Mountain excavation site in New Mexico is an important archaeological location of the ancient Native American Anasazi c
timurjin [86]

Answer:

a) 28

b)

Class Limits  Class Boundaries   Midpoint    f      Rf         Cf

10 - 37            9.5-37.5                   23.5            7     0.096     7      

38 - 65           37.5-65.5                 51.5           25    0.342     32    

66 - 93           65.5-93.5                 79.5          26    0.356     58    

94 -  121        93.5-121.5                   107.5         9     0.123       67    

122 - 149      121.5-149.5                  135.5         5      0.068     72  

150 - 177       149.5-177.5                  163.5        0         0.0      72    

178 - 205       177.5-20.5                  191.5         1       0.014      73  

Total                                                                  73          1.0    

c)

The histogram is in attached file.

Step-by-step explanation:

a)

The width of class interval=range/desired number of classes

The width of class interval=(maximum-minimum)/7

The width of class interval=(200-10)/7

The width of class interval=190/7

The width of class interval=27.14=28 (rounded to next whole number)

Part(b) and part (c) is explained in attached word document.

Download docx
5 0
3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
10. When you add the same number to both sides of an inequality, is the inequality still true? Explain how you know your stateme
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The inequality is still true! If you add a number, say 5 to both sides of the following inequality, does anything change?

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The inequality is still true. We know the statement holds for subtracting the same number because, in a way, addition and subtraction are pretty much the same operation. If I subtract 5 from both sides, I can think of it like "I add negative 5 to both sides" or something along those lines. It's kind of backwards thinking.

6 0
3 years ago
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