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serg [7]
3 years ago
8

When a random sample is selected from a population, the sample mean is not expected to be exactly equal to the population mean.

On average, the distance between the sample mean and the population mean is predicted bya. the standard error
b. the expected value
c. the mean of the population
d. the standard deviation of the population
Mathematics
1 answer:
Evgen [1.6K]3 years ago
3 0

d. the standard deviation of the population

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Determine algebraically all points where the graphs of XY equal 10 and Y equals X +3 intersect
Gelneren [198K]
XY=10
Y=X+3
X(X+3)=10
X^2+3X=10
X^2+3X-10
(X-2)(X+5)
6 0
3 years ago
Help please I needed!!!!
faust18 [17]

Answer:

Step-by-step explanation:

4. f(x) = √(x + 4)

f(5) = √(5+4) = √(9) = 3

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  g(-1)=          (-1)^12 - (-1)^5

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3 0
3 years ago
Right angled triangle calc: find a, b=24, c=33.94113
Ksenya-84 [330]
Use the Pythagorean theorem...
a²+b²=c², in this case a²=c²-b<span>²</span>

a²+24²=33.94113<span>²

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a</span><span>²=576.000306

a=24    (If you need the exact number, not rounded, it is 24.0000064)</span>
5 0
3 years ago
Marks test scores for this semester were 83,80,91,74,66,95,87,72,95,97 what is the mode of his test scores
Vlada [557]

Answer:

95

Step-by-step explanation:

Mode is what is the most frequent number that occurred; 95 occurred the most from the data.

3 0
3 years ago
The radius of a circle is 14.2 m. Find the circumference to the nearest tenth.​
lana66690 [7]

Answer:

C=89.2

Step-by-step explanation:

The formula of the circumference of a circle is C=2piR (or C=piD). Now, when calculating, plug in the numbers, giving you C=2pi14.2. Multiply everything, you get a super long irrational number; just round. You will get 89.2.

7 0
3 years ago
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