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ioda
2 years ago
15

100 points its most of my points PLS HELP ME IM LOSING ALOT OF POINTS

Mathematics
1 answer:
rosijanka [135]2 years ago
3 0

Hello there mate☺️,

The answer for your question is in the attached images .

✍️ <em>By </em><em>Benjemin</em><em> ☺️</em>

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Help asap pls!!! Put steps if possible 3
GarryVolchara [31]

Answer:

i. 15.4

ii.45.2

Step-by-step explanation:

correct me if im wrong

tnx

8 0
2 years ago
Choose True or False for each statement.
BlackZzzverrR [31]
17372!82!. 9hhhhhh nooo
3 0
3 years ago
The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 330 grams and a standard deviati
just olya [345]

Answer:

Weights of at least 340.1 are in the highest 20%.

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 = 330, \sigma = 12

a. Highest 20 percent

At least X

100-20 = 80

So X is the 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.842.

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

0.842 = \frac{X - 330}{12}

X - 330 = 12*0.842

X = 340.1

Weights of at least 340.1 are in the highest 20%.

3 0
3 years ago
Which value of a in the exponential function below would cause the function to stretch?
shutvik [7]
A would have to be greater than 1 to get a vertical stretch
4 0
2 years ago
Read 2 more answers
Find the value of x if y =1/4x and 5x-8y=33​
Verdich [7]

Answer:

x=11

Step-by-step explanation:

y= 1/4x

5x-8y=33

5x-8(1/4x)=33

x=11

8 0
3 years ago
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