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amm1812
3 years ago
6

What is the median of the scores shown in the stem-and-leaf plot?

Mathematics
2 answers:
Setler79 [48]3 years ago
5 0

Answer: 92

Step-by-step explanation:

Total number of data (N) = 18.

Median = (N+1)/2 th term

Median = (18+1)/2 th term

Median = 9.5 th term

Now, look at the 9th and 10th term.

9th term = 88

10th term = 96

9.5th term is in between 9th and 10th term, so take mean of these two values

Median = ( 88 + 96 ) / 2

Median = 92

AlekseyPX3 years ago
4 0
The answer is 88. Median is middle number and you don’t count the same number twice
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There are 10 seniors in the class, from which 4 should be chosen by the teacher. The order of the chosen students does not matter. This means that we speak of combinations. THe equation for calculating the number of possible combinations is:
C=N!/R!(N-R), where N is the total number of objects and R is the number of objects we select from the N 
In our case, N=10, R=4.
C= 10!/4!*6!=10*9*8*7*6!/6!*4*3*2*1=<span>10*9*8*7/24=5040/24=210
There are 210 different ways for the teacher to choose 4 seniors in no particular order.</span>
6 0
3 years ago
The price of a sofa was reduced from $250 to $180. By what percentage was the price
Inessa [10]

Answer:

the price was reduced by 28%

7 0
3 years ago
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Nonamiya [84]

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8 0
2 years ago
Center ( 9,-8 ), passes through ( 19,22 )
katovenus [111]
Center at (h,k) and radius r is
(x-h)²+(y-k)²=r²

so given
center at (9,-8)

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input the point (19,22) to find r²
x=19 and y=22
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1000=r²
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well, the equation is
(x-9)²+(y+8)²=1000
6 0
3 years ago
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Arlecino [84]
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7 0
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