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Vadim26 [7]
2 years ago
13

An apartment building has 20 two-bedroom apartments and 8 three-bedroom apartments. If 4 apartments are chosen at random to be r

edecorated, what are the probabilities a) All will be two-bedroom apartments
Mathematics
2 answers:
seraphim [82]2 years ago
7 0
The answer is 4 of 28. i think so 
ankoles [38]2 years ago
5 0
A) This is sampling without replacement.
P(all\ 2\ bedroom)=\frac{20C4}{28C4}=\frac{20\times19\times18\times17}{28\times27\times26\times25}
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Option 3 or 4 would be your correct answer
5 0
2 years ago
Round to the nearest whole number:<br> a) 19.3 b) 127.8
enot [183]

Answer:

19 and 128

Step-by-step explanation:

19.3 is closer to 19 than 20 and 127.8 is closer to 128 than 127

7 0
2 years ago
Read 2 more answers
the vertex of the parabola below is at the point (5,-3). which of the equations below could be the one for this parabola?
lapo4ka [179]

Answer: ty for the points

Step-by-step explanation:

x+-3(y+3)2+5

6 0
2 years ago
Answer these two questions?
Damm [24]
14)
17 + 14 - 11 = 17
17+20 = 37

answer
? = 20

----------
15)13+15+13 = 41
41 - 10 = 31

answer
? = 10
8 0
2 years ago
4). The prices of various cereal boxes is normally
Lina20 [59]

Answer:

difference in rise is $0.95 = $5.24

lucky charms = $4.29 = 22.03% 0.945

As deviation 0.5 of 4.29 = 97.855%

22.03% of 4.29 = 0.945 = + 4.29 = $5.24

Step-by-step explanation:

z score = 0

A z-score less than 0 represents an element less than the mean. A z-score greater than 0 represents an element greater than the mean. A z-score equal to 0 represents an element equal to the mean.

0.5 :  0.9452

This replaces the deviation

lucky charms = $4.29 = 22.03% more 0.945

As deviation 0.5 of 4.29 = inverse of 97.855%  = 0.02145

2.145% 22.03-2.145

22.03% of 4.29 = 0.945 = + 4.29 = 5.235 = $5.24

So this means the difference in rise is $0.95

3 0
2 years ago
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