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grin007 [14]
3 years ago
12

A study of commuting times reports the travel times to work of a random sample of 1076 employed adults in chicago. the mean is x

= 48.0 minutes and the standard deviation is s = 46.9 minutes. what is the standard error of the mean? (round your answer to four decimal places.)
Mathematics
1 answer:
kari74 [83]3 years ago
4 0
So your answer would be 15.45
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Plz help no guessing
Lina20 [59]

You answer will be B, as the graph increases 5 miles per hour

6 0
3 years ago
Read 2 more answers
What is the length of the diagonal of a square with side lengths 7 square root of 2 ? round to the nearest tenth if necessary?
mr_godi [17]
There is 2 ways to solve this type of question.

Method 1
--------------------------------------------------
Formula
--------------------------------------------------
a² + b² = c²

--------------------------------------------------
Apply the formula
---------------------------------------------------
(7√2)² + (7√2)² = c²
c² = 98 + 98
c² = 196
c = √196
c = 14

--------------------------------------------------
Ans: The diagonal length is 14cm 
--------------------------------------------------

_____________________________________________________________

Method 2
--------------------------------------------------
Identify the triangle
--------------------------------------------------
This is a special triangle
45° - 45° - 90°

--------------------------------------------------
Property of the Angles 
--------------------------------------------------
x - x - x√2

--------------------------------------------------
Find hypotenuse
--------------------------------------------------
Given that the non-hypotenuse is 7√2

Hypotenuse =  (7√2)(√2)
Hypotenuse =  7 x 2
Hypotenuse = = 14cm

--------------------------------------------------
Ans: The diagonal length is 14cm 
--------------------------------------------------

6 0
3 years ago
HELP ME PLZ I NEED HELP
german

Answer:

A

Step-by-step explanation:

\frac{12}{a} = \frac{9}{b} => 12b = 9a

12 * 1.5 = 9 * 2

18 = 18

This option works

5 0
3 years ago
Can u answer dis?<br><br> will mark brainliest
Grace [21]
The correct answer is B
325-45=280
8x35=280
3 0
2 years ago
A man bought 550 oranges at 60 paisa each and 240 oranges at 50 paisa each. If he sold them at the rate of 10 for Rs 9. what was
Hunter-Best [27]

Answer:

hence the profit percent is 58%.

6 0
3 years ago
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