1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
likoan [24]
3 years ago
5

The average number of hours of sleep per night was 9.46 hours for a sample of 104 five to seven year-old children. The number 9.

46 is a __________.
Mathematics
1 answer:
alexgriva [62]3 years ago
5 0

Answer:

Statistic

Step-by-step explanation:

Since, a characteristic of a sample is called statistic. It is used to estimate the value of a population parameter and can be computed from the sample.

Here, the sample is 104 children,

For which the average number of hours of sleep per night was 9.46 hours,

∵ 9.46 is the number that can be computed from the sample of 97 children.

Hence, the number 9.46 is a Statistic

You might be interested in
A students grade goes from a 95 to a 60 in 3 weeks. Calculate the students rate of grade change.
adoni [48]

Answer: The rate of change is 11.6666...

Step-by-step explanation:

You subtract 95 by 60 and you get 35.

You divide it by 3 because it happened over 3 weeks.

After dividing your answer is 11.6666...

6 0
3 years ago
What is the square and square root of 9x⁸​
adelina 88 [10]

Answer:

square: (9x^8)^2= 81x^16

square root: (9x^8)^1/2 = 3x^4

Step-by-step explanation:

the ^ mean that the following num should be like this ​⁸​

8 0
3 years ago
Name all of the radii of the circle. Ok guys im soooo sorry!!!
stich3 [128]

Answer: B

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
If a=2b^3 and b= -1/2c ^-2,express a in terms of c.
ElenaW [278]

Answer:

Part 1) a=-\frac{1}{4c^6}

Part 2) a=-\frac{1}{4c^{-6}}

Step-by-step explanation:

Part 1) we have

a=2b^{3} ----> equation A

b=-\frac{1}{2}c^{-2} ----> equation B

substitute equation B in equation A

a=2(-\frac{1}{2}c^{-2})^{3}

Applying property of exponents

(x^{m})^{n}=x^{m*n}

x^{-m} =\frac{1}{x^{m}}

a=2(-\frac{1}{2}c^{-2})^{3}=2(-\frac{1}{2})^3(c^{-2})^{3}=2(-\frac{1}{8})(c^{-6})=-\frac{1}{4c^6}

therefore

a=-\frac{1}{4c^6}

Part 2) we have

a=2b^{3} ----> equation A

b=-\frac{1}{2c^{-2}}=-\frac{c^{2}}{2} ----> equation B

substitute equation B in equation A

a=2(-\frac{c^{2}}{2})^{3}

Applying property of exponents

(x^{m})^{n}=x^{m*n}

x^{-m} =\frac{1}{x^{m}}

a=2(-\frac{c^{2}}{2})^{3}=2(-\frac{c^{6}}{8})

simplify

a=-\frac{c^{6}}{4}

therefore

a=-\frac{1}{4c^{-6}}

6 0
3 years ago
I want a simple explanation on how to get the answer to this question not just the answer.
AveGali [126]
The answer is= there are 126 5p coins

the reason for this is that
-630 is simplified to 5,
-so 1/5 is really 126/630,
(630 divided by 5 is 126)
- and so 2/5 is 126 x 2 =252/630
- there are only 3 parts left, and if 1p has more parts than 5p,
-then 1p takes up 2/5 of the bag
-and 5p takes up 1/5 of the bag
3 0
2 years ago
Other questions:
  • The scatter plot below can be used to find the approximate rate at which water flows through a garden hose. The line of best fit
    11·1 answer
  • Solve please √x-5+7=9
    10·2 answers
  • Which term describes the red curve in the figure below?
    7·2 answers
  • What's the step by step progress for writing 14.35 in scientific notation​
    12·1 answer
  • Suppose a large population has a mean μand standard deviation σ, and a simple randomsample of size nis taken. The sampling distr
    8·1 answer
  • Select the three inequalities that are true.
    7·2 answers
  • I NEED HELP FAST!!!!!!!!!!!!
    14·1 answer
  • What
    10·1 answer
  • In the diagram below, triangle abc is equivalent to triangle efg, m
    7·1 answer
  • What is the slope of this line? 4 34 −34 −3 Number graph ranging from negative 5 to 5 on both the x and y axis. A line passes th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!