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I am Lyosha [343]
4 years ago
15

A random sample is drawn from a population with mean μ = 66 and standard deviation σ = 5.5. use table 1.

Mathematics
1 answer:
creativ13 [48]4 years ago
7 0
<span>A random sample is drawn from a population with mean μ = 66 and standard deviation σ = 5.5. use table 1.
a. is the sampling distribution of the sample mean with n = 16 and n = 36 normally distributed? yes, both the sample means will have a normal distribution. no, both the sample means will not have a normal distribution. no, only the sample mean with n = 16 will have a normal distribution. no, only the sample mean with n = 36 will have a normal distribution.
b. can you use the standard normal distribution to calculate the probability that the sample mean falls between 66 and 68 for both sample sizes? yes, for both the sample sizes, standard normal distribution could be used. no, for both the sample sizes, standard normal distribution could not be used. no, only for the sample size with n = 16, standard normal distribution could be used. no, only for the sample size with n = 36, standard normal distribution could be used.
c. calculate the probability that the sample mean falls between 66 and 68 for n = 36. (round intermediate calculations to 4 decimal places, "z" value to 2 decimal places, and final answer to 4 decimal places.)</span>
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The measure of an angle is 65°. What is the measure of its complementary angle?
vovangra [49]

Answer:

25 degrees

Step-by-step explanation:

If two angle are complementary that means they add to 90 degrees. Therefore, 90 - 65 = 25.

7 0
3 years ago
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OK GUYS I WOULD LIKE SOMEONE TO PLUG IN THE VALUES FOR ME PLEASE FOR X TO MAKE THIS TRUE SO I CAN GRAPH THE EXPONENTIAL GRAPHS.
Nitella [24]
We see that we have some nasty sqrt signs
try to use x values that yield perfect squares inside the sqrt sign like 1,4,9,16, or ones that make the inside 0


first one

y=-4+√(x+2)
try some nice values for ease of graphing

ok so try x=-2
y=-4
(-2,-4)

x=-1
y=-3
(-1,-3)

x=-1
y=-3
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if x=14
y=0
(14,0)

so we have
(-2,-4)
(-1,-3)
(2,-2)
(7,-1)
(14,0)




second one
y=2+√(x+1)


if x=-1
y=2
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if x=0
y=3
(0,3)

if x=3
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if x=8
y=5
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we have

(0,3)
(-1,2)
(3,4)
(8,5)












 
first one
y=-4+√(x+2)
so we have
(-2,-4)
(-1,-3)
(2,-2)
(7,-1)
(14,0)

second one
y=2+√(x+1)
(0,3)
(-1,2)
(3,4)
(8,5)

7 0
3 years ago
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What is 5 x 5 in mathematics
sashaice [31]

Answer:

5x5 = 25.

Step-by-step explanation:

Put 5 into 5 groups of 5, then count all the circles in the group.

Add-on:

hope that helped at all.

4 0
3 years ago
Write an equation representing the fact that the product of two consecutive odd integers is 255. use x to represent the smaller
USPshnik [31]

The first odd number = 15

The second is then = 17

<h3>The Consecutive numbers are:</h3>

Consecutive numbers are those that appear consecutively after one another in the range of smallest to largest. An illustration would be the sequence of numbers 1, 2, 3, 4, 5, and so on.

<h3>Where can I find consecutive numbers?</h3>

Let x be the first of the following numbers to represent it algebraically. Following that, the numbers x + 1, x + 2, and x + 3 would be arranged in order. You must make sure that your first selection is an even number if the question requires consecutive even numbers.

<h3>According to the given information:</h3>

We can employ the expression "2n," where n is any integer, to ensure that the result is even. By using the expression "2n + 1," we can ensure an odd number.

"2n + 3" will be the following odd number:

(2n + 1)(2n + 3) is the component of the odd integers, and it equals 255:

(2n + 1)(2n + 3) = 255

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4n2 + 8n - 252 = 0

n2 + 2n - 63 = 0

(n + 9)(n -7) = 0

n = -9 and n = 7

We can disregard n = -9 because we are informed that the figures must be positive.

If n = 7,

The first odd number = 2(7) + 1 = 15

The second is then 17

To know more about consecutive numbers visit:

brainly.com/question/2493629

#SPJ4

I understand that the question you are looking for is:

The product of 2 positive, consecutive odd numbers is 255 .

Part A: Write a quadratic equation in standard form to represent this problem

Part B: What are the 2 numbers?

Part C: Show your work for Part B.

3 0
2 years ago
(2/9) to the power the 3
diamong [38]
The answer is (2/9)^3 = 0.01097 

3 0
4 years ago
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