What’s number 11 (same directions as below)

Mathematics

1 answer:

Ronch [10]4 years ago

3 0

Answer:

These two triangles are similar because they have 3 angles in common.

Step-by-step explanation:

We can tell this since they both have right angles in them. We also know that angle X and U are the same since they have the notation. And since all triangles add up to 180, and if the other two angles are the same, then the final angle must be the same too.

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8. The distribution for the time it takes a student to complete the fall class registration has mean of 94 minutes and standard

Alborosie

Answer:

Mean = 94

Standard deviation = 1.12

The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means with size n of at least 30 can be approximated to a normal distribution with mean $\mu$ and standard deviation, which is also called standard error $s = \frac{\sigma}{\sqrt{n}}$