Answer:
a: sample mean: 130.2 pounds
This is not the population mean
Step-by-step explanation:
To find the mean weight of the sample, add up all the values and divide by the total number of values entered. In this case, 10, so we have...
mean: (136 + 99 + 118 + 129 + 125 + 170 + 130 + 128 + 120 + 147)/10 =
1302/10 = 130.2
This is not the population mean. It is the mean of the sample. We would have to know more information to make a conjecture about the population mean.
Step-by-step explanation:
the distance covered by the card using 8.5 liters of petrol is 140.25 km
Answer:
Step-by-step explanation:
- 1. c increased by 5 is 5 ⇒ h. c + 5 = 5
- 2. 4 more than a number is 12 ⇒ b. n + 4 = 12
- 3. The product of 4 and n is 12 ⇒ i. 4n = 12
- 4. The difference of 27 and k is 15 ⇒ a. 27 - k = 15
- 5. 8 less than 3 times x is 10 ⇒ f. 3x - 8 = 10
- 6. 3 times x increased by 8 is 20 ⇒ d. 3x + 8 = 20
- 7. A number minus 8 is 3 ⇒ e. k - 8 = 3
- 8. Three times a number is 9 ⇒ j. 3n = 9
- 9. Twice a number plus 1 is 11 ⇒ g. 2x + 1 = 11
- 10. 6 less than a number is 5 ⇒ c. c - 6 = 15
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