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Lyrx [107]
3 years ago
13

How do you find the following things? [Will mark brainliest]

Mathematics
1 answer:
UNO [17]3 years ago
7 0
1.)find mean- the mean is the average of the numbers. 2.) find median- The median is the number that is halfway into the set. 3.) find range- The range of a set of data is the difference between the highest and lowest values in the set. 4.) find quartiles-Quartiles are the values that divide a list of numbers into quarters. 5.) find mode-put the numbers in order. Then count how many of each number. A number that appears most often is the mode
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A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for t
hoa [83]

Answer:

Since p value <0.1 accept the claim that oven I repair costs are more

Step-by-step explanation:

The data given for two types of ovens are summarised below:

Group   Group One     Group Two  

Mean 85.7900 78.6700

SD 15.1300 17.8400

SEM 1.9533 2.3840

N 60       56      

Alpha = 10%

H_0: \mu_1 - \mu_2 =0\\H_a: \mu_1 - \mu_2> 0

(Right tailed test)

The mean of Group One minus Group Two equals 7.1200

df = 114

 standard error of difference = 3.065

 t = 2.3234

p value = 0.0219

If p value <0.10 reject null hypothesis

4) Since p value <0.1 accept the claim that oven I repair costs are more

 

3 0
4 years ago
Choose one of the polygons that are similar to polygon A, and describe a sequence of transformations that take polygon A to the
skad [1K]
E is similar, a rotation and translation can take polygon A to polygon E. Step-by-step explanation: a rotation 90 degrees counter clockwise around point r and a translation 4 down and 9 right will take plygon A to E.
You visited this page on 3/12/21.
5 0
3 years ago
The sales tax for an item was $15.60 and it cost $390 before tax. Find the sales tax rate. Write your answer as a percentage.
labwork [276]

Answer:

15.60 times 100 divided by 390=4%

Step-by-step explanation:

7 0
3 years ago
Evaluate.<br> 5.002 - 4.3<br> 
tia_tia [17]

Answer:

0.702

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The probability of a spinner arrow stopping on green is 0.25. the probability of drawing a blue 3 from a pack of cards is 0.02.
Eddi Din [679]
Be the event a spinner arrow stopping on green: A
The probability of a spinner arrow stopping on green: P(A)=0.25
Be the event drawing a blue 3 from a pack of cards: B
The propbability of drawing a blue 3 from a pack of cards: P(B)=0.02
The two events are independent
Probability of a spinner arrow stopping on a green and drawing a blue 3 from the pack of cards: P (A and B)=P(A <span>∩ B)=?

Since the events are independent:
</span>P(A ∩ B)=P(A)*P(B)
P(A ∩ B)=(0.25)*(0.02)
P(A ∩ B)=0.005

Answer: <span>The approximate probability of a spinner arrow stopping on a green and drawing a blue 3 from the pack of cards is 0.005</span>


6 0
4 years ago
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