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KATRIN_1 [288]
3 years ago
9

Granny Smith is making strawberry jelly. She fills 6.5 ounce jars to give as gifts. Granny was able to fill 9.5 jars. How many o

unces of strawberry jelly did Granny Smith make?
Mathematics
1 answer:
ehidna [41]3 years ago
5 0
Granny Smith was able to make 61.75 ounces of strawberry jelly
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A particular battery claims to have a mean life of 400 hours with a standard deviation of 30 hours. Approximately what percent o
Svetach [21]

Using the normal distribution, it is found that 25.14% of the batteries will last more than 420 hours.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, we have that the mean and the standard deviation are given, respectively, by:

\mu = 400, \sigma = 30.

The proportion of the batteries will last more than 420 hours is <u>one subtracted by the p-value of Z when X = 420</u>, hence:

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

Z = \frac{420 - 400}{30}

Z = 0.67

Z = 0.67 has a p-value of 0.7486.

1 - 0.7486 = 0.2514.

0.2514 = 25.14% of the batteries will last more than 420 hours.

More can be learned about the normal distribution at brainly.com/question/24663213

#SPJ1

3 0
2 years ago
4. What are the terms in the expression, 9- 4 + 3b + 7a?
Elan Coil [88]

Answer:

The terms are 9, 4, 3b and 7a.

The terms are 9 – 4 and 3b + 7a.

The terms are 9, -4, 3b, and 7a.

Step-by-step explanation:

7 0
2 years ago
What is the radius of the cone?
gayaneshka [121]

Answer:

r = 6 in

Step-by-step explanation:

V = \pi r^{2} \frac{h}{3} = 216\pi

r²h/3 = 216

r² (18/3) = 6 r² = 216

r² = 216/6 = 36

r = 6

3 0
2 years ago
inductive reasoning is when uses lots of data to make a conjecture A. True B. False please answer now I need help with this plea
ddd [48]

Answer:

False

Step-by-step explanation:

Inductive reasoning is a method of reasoning in which the premises are viewed as supplying some evidence for the truth of the conclusion.

7 0
3 years ago
Please help asap!! thank you
svp [43]

Answer:

51 degrees

Step-by-step explanation:

4 0
2 years ago
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