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Lady bird [3.3K]
3 years ago
10

Consider this population data set: 4,6,7, 11, 12, 18, 26, 23, 14, 31, 22, and 12. The values 11, 31, 22, and 12 constitute a ran

dom sample
drawn from the data set.
The sample mean is more than the population mean by
Mathematics
1 answer:
Andrej [43]3 years ago
6 0

Answer:

The population mean is the sum of the 12 data set values divided by 12:

4 + 6 + 7 + 11 + 12 + 18 + 26 + 23 + 14 + 31 + 22 + 12 = 186.

Therefore the population mean = 186/12 = 15.5.

The sample mean is the sum of the 4 sample values divided by 4:

11 + 31 + 22 + 12 = 76.

Therefore the sample mean = 76/4 = 19.

The sample mean is more than the population mean by 19 - 15.5 = 3.5.

hope it helped

Step-by-step explanation:

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Hitman42 [59]
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y + 15 < 3

Start by subtracting 15 on both sides

y + 15 - 15 < 3 - 15

y < -12

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7 0
3 years ago
About how tall is a two-story building? 6 inches 20 feet 25 inches 6 feet
lara [203]

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8 0
3 years ago
I need help ASAP) i need both answers (person who gets it right gets a brainlist and 5 stars)
Flauer [41]

Answer:

Part A: 24 meters

Part B: 33 meters²

Step-by-step explanation:

Part A: We know the length of 4 of the sides. The other two sides are 2 m & 1 m. Now add all of those values up. 3 + 7 + 5 + 6 + 2 + 1 = 10 + 11 + 3 = 21 + 3 = 24 meters. The perimeter of the polygon is 24 meters.

Part B: I'll split this into two rectangles: one is 3 by 7, and the other is 6 by 2. (3 * 7) + (6 * 2) = 21 + 12 = 33 meters². The area of the polygon is 33 meters².

8 0
2 years ago
D-7 =-18<br> What’s the answer?
AlexFokin [52]

Answer:

D = - 9

Step-by-step explanation:

D - 7 = -18

D - 7 + 7 = -18 + 7

D = -9

5 0
2 years ago
Read 2 more answers
Jenny bought a pair of pants for $19.99 and two shirts for $7.50. If she gave the cashier 40 dollars how much change did she rec
VMariaS [17]

Answer:

Jenny will receive $12.51 in change.

Step-by-step explanation:

We need to find the total cost first.

19.99 + 7.50 = 27.49

We then subtract that from the 40 dollars she gave to get the amount of change she receives.

40.00 - 27.49 = 12.51.

She will receive $12.51 in change.

hope this helped!  

4 0
3 years ago
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