Phyllis is going to take a 5-hour-17-minute flight from Orlando, Florida, to Las

Mathematics

1 answer:

Rainbow [258]3 years ago

6 0

Answer:

Step-by-step explanation:

ok...so she leaves Orlando at 11:05 am.....the flight takes 5 hr and 17 minutes..

11:05 am + 5 hrs = 4:05 pm.....4:05 + 17 minutes = 4:22 pm.

so she arrives at 4:22 pm eastern time....(orlando time)...but Las Vegas is pacific time

so if 12 pm eastern = 9 am pacific.....a difference of 3 hrs

so the local time in Las Vegas when her plane lands is :

4:22 pm - 3 hrs = 1:22 pm <===

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48. Reading Rates The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per minute a

son4ous [18]

Answer:

The reading speed of a sixth-grader whose reading speed is at the 90th percentile is 155.72 words per minute.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 125, \sigma = 24$