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ryzh [129]
3 years ago
13

A 1992 poll conducted by the University of Montana classified respondents by gender and political party, as shown in the table b

elow. We wonder if there is an association between gender and party affiliation.
( Democrat / Republican / Independent )
Male= ( 36 / 45 / 24 )
Female= ( 48 / [[33]] / 16 )

What is the correct expected value for the highlighted cell?

A. 19.2


B. 37.5


C. 40.5


D. 40.3
Mathematics
1 answer:
Allisa [31]3 years ago
5 0
A guess would be d and gauss would not have been consulted because a mean is not necessary in this instance
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Emily purchased lemons for $600. She sold 3/4 of these at a loss of 20% and the remaining at a gain of 20%. How much percent doe
MAVERICK [17]

Answer:

10%

Step-by-step explanation:

Given: CP of lemon is $600.

           3/4 of lemon sold at 20% loss

           Remaining lemon at 20% gain.

Considering the quantity of lemon remain constant.

Cost price of 3/4 of lemon= \frac{3}{4} \times 600= \$450

As given, 3/4 of lemon sold at 20% loss.

∴ Selling price of \frac{3}{4}\ of\ lemon=  450- \frac{20}{100}\times 450

Selling price= 450- 90= \$ 360

Hence, selling price of 3/4 lemon is $360.

Now, the cost price of remaining lemon (1-\frac{3}{4} )= (\$ 600-\$ 450)

∴ The cost price of \frac{1}{4}\ lemon = \$ 150

As given, remaining \frac{1}{4} lemon\ sold\ at\ gain\ of\ 20\%

∴ Selling price of \frac{1}{4} \ lemon= (150\times \frac{20}{100}+150)

Selling price of \frac{1}{4} \ of\ lemon= (30+150)

Hence, selling price of 1/4 lemon is $180

Loss\profit percent= \frac{(SP-CP)}{CP} \times 100

∴ Loss\profit percent= \frac{60}{600} \times 100= 10\%

Hence, the loss percentage is 10%

8 0
3 years ago
Which of the following expressions represents "the quotient of nine times a number and seven"?​
irga5000 [103]

Answer:

I think it's 9x/7

Step-by-step explanation:

Hope my answer has helped you.

3 0
3 years ago
Will mark brainliest!!
Elodia [21]

Answer:

. Name all horizontal and vertical intercepts of the graph.

Step-by-step explanation:

4 0
2 years ago
Which expression shows the sum of the polynomials with like terms grouped together?
Leto [7]

Answer:

C. (-4x^2)+2xy^2+[10x^2y+(-4x^2y)

Step-by-step explanation:

A. [9-4x2) + (-4x2y) + 10x2y] + 2xy2  : in this polynomial the first term is not a like term, then this is incorrect.

B. 10x2y + 2xy2 + [(-4x2) + (-4x2y)]  : in this polynomial, the terms that are grouped, are not like terms, then is incorrect.

C. (-4x2) + 2xy2 + [10x2y + (-4x2y)]  ; This polynomial is the right answer because the like terms are grouped.

D. [10x2y + 2xy2 + (-4x2y)] + (-4x2): This polynomial is incorrect because one of the terms that are grouped is not a like term.

4 0
3 years ago
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