A new shirt costs $14.99. If the shirt in sale for 1/5 off its price, about much would you save. SOLUTION PLS
2 answers:
Answer:
As per the given condition:
A new shirt costs $14.99.
If the shirt has a sale for off its price.
Now, we find how much you save on this shirt:
First find the of $14.99
i.e,
⇒ you have the discounted value is $ 3 .
You pay for the shirt is: $14.99 -$ 2.998 = $11.992
Therefore, you would save $2.998 or $ 3 in buying your new shirt.
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Answer:
0.7486 = 74.86% observations would be less than 5.79
Step-by-step explanation:
I suppose there was a small typing mistake, so i am going to use the distribution as N (5.43,0.54)
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
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.
The general format of the normal distribution is:
N(mean, standard deviation)
Which means that:
What proportion of observations would be less than 5.79?
This is the pvalue of Z when X = 5.79. So
has a pvalue of 0.7486
0.7486 = 74.86% observations would be less than 5.79