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Marianna [84]
2 years ago
8

Help!!!!!!!!!!!!!!!!! Plz help me :)

Mathematics
1 answer:
user100 [1]2 years ago
7 0

Answer:

a) 121,000

b)8.35 x 10^-6

Step-by-step explanation:

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Which of the following conditions must be met in order to make a statistical inference about a population based on a sample
klasskru [66]

Answer:

For this case if we want to conclude that  the sample does not come from a normally distributed population we need to satisfy the condition that the sample size would be large enough in order to use the central limit theoream and approximate the sample mean with the following distribution:

\bar X \sim (\mu, \frac{\sigma}{\sqrt{n}})

For this case the condition required in order to consider a sample size large is that n>30, then the best solution would be:

n>= 30

Step-by-step explanation:

For this case if we want to conclude that  the sample does not come from a normally distributed population we need to satisfy the condition that the sample size would be large enough in order to use the central limit theoream and approximate the sample mean with the following distribution:

\bar X \sim (\mu, \frac{\sigma}{\sqrt{n}})

For this case the condition required in order to consider a sample size large is that n>30, then the best solution would be:

n>= 30

7 0
3 years ago
It is known that the distance in metres through which a body falls freely varies directly as the square of the time taken. If a
erma4kov [3.2K]

Answer:

125 meters

Step-by-step explanation:

Let distance = d and time is t

Using the variation;

d = k t^2

So let’s us get k

80 = k * 4*2

16k = 80

k = 80/16 = 5

So for 5 seconds, the distance would be;

d = 5 * 5^2

d = 125 meters

4 0
3 years ago
Simply the following question in the photo
grin007 [14]

Answer:

Step-by-step explanation:

7 0
3 years ago
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If f(x) = 4x + 12 is graphed on a coordinate plane, what is the y-intercept of the graph?
Ierofanga [76]

Answer:

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6 0
3 years ago
Use the Side-Splitter Theorem to find x, given that PQ||BC . The figure is not drawn to scale.
MrRa [10]

Answer: x=12


Step-by-step explanation:

1. Accoding to the Side-Splitter Theorem, if a line interesect two sides of the triangle and it is parallel to the third side, then the other two sides are divided by the line proportionally.

2. Then, you can form the following proportion:

\frac{PA}{BP}=\frac{QA}{CQ}

3. Substitute values and solve for x:

\frac{8}{x}=\frac{12}{18}\\18*8=12x\\x=12


8 0
3 years ago
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