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klemol [59]
3 years ago
5

How many cars averaged less than 30 miles per gallon? 75 20 55 70

Mathematics
2 answers:
GREYUIT [131]3 years ago
6 0

Answer:

The answer is 75

amosc @briahall0

Step-by-step explanation:

LekaFEV [45]3 years ago
5 0
Your answer is 75, hope this helps you! 
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Please explain thank you
mixas84 [53]
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6 0
3 years ago
The yearbook staff receive 75 submissions for yearbook articles. Paul will accept 2/5
antiseptic1488 [7]

Answer:

2/5 of 75 is 30 thats all i have for because i am haveing trouble with the same question

Step-by-step explanation:

7 0
3 years ago
At the beginning of a semester an anonymous survey was conducted on students in a statistics class. Two of the questions on the
kati45 [8]

Answer:

a. Chi-square test of independence

Step-by-step explanation:

The chi square statistics is also used to test the hypothesis about the independence of two variables each of which is classified into a number of categories or attributes.

In the given problem the Equal , more or less are the attributes.

The goodness of fit test is applicable when the cell probabilities depend upon the unknown parameters  provided that the unknown parameters are replaced with their estimates and provided that one degree of freedom is deducted for each parameter estimated.

4 0
3 years ago
A set of physics exam scores are normally distributed with a mean of 80 points and a standard deviation of 6
Anuta_ua [19.1K]

Answer:

The proportion of exam scores that are lower than Irina's score is 0.9938

Step-by-step explanation:

<u>Data</u>

  • mean: 80 points
  • standard deviation (sd): 6 points
  • value of interest (x): 95 points

z-score is computed as follows:

z = (x - mean)/sd

z = (95 - 80)/6 = 2.5

We want to find:

P(z < 2.5)

From the table attached:

P(z < 2.5) = 0.9938

3 0
3 years ago
How long can I talk on the phone if they charge 8 cent a minute and I have 90 cents
NeTakaya
U can talk only for 11 minutes and have 2cents left
6 0
3 years ago
Read 2 more answers
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