I bet you cant answer this problem!!!

Mathematics

1 answer:

Free_Kalibri [48]2 years ago

8 0

9. Unicellular organisms are considered to be living things because they make up a living thing as a whole

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Calvin, Eli, lunch and Cora are preparing hygiene kits for the Red Cross. Calvin fill four in three minutes, Eli fills 75 per ho

IrinaVladis [17]

Lucy

Lucy = 1.5 every minute
Calvin = 1.3
Eli = 1.25
Cora = 1.16

3 0

3 years ago

The head of the Westlane Cultural Center wants to get a sense of how quickly pledges from donors arrive at the center. It takes

Rzqust [24]

Answer:

95.64% probability that pledges are received within 40 days

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:

$\mu = 28, \sigma = 7$