2 years ago

A teacher surveys 30 students on the number of books they read over the summer. The data

1 answer:

3 0

Answer:

8+12=20÷2=10

median is 10

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maw [93]

Answer:

answer in photo

hope this helps :)

Step-by-step explanation:

7 0

2 years ago

klasskru [66]

The equation is 30x + 25
since the x is with the 30, that would be the cost per lesson, because you would multiply 30 by the number of lessons(x)

7 0

2 years ago

7nadin3 [17]

I'd say the answer is C.

5 0

2 years ago

WINSTONCH [101]

Answer: The number of first-year residents she must survey to be 95% confident= 263

Step-by-step explanation:

When population standard deviation ( $\sigma$ ) is known and margin of error(E) is given, then the minimum sample size (n) is given by :-

$n=(\dfrac{z^*\sigma}{E})^2$ , z* = Two-tailed critical value for the given confidence interval.

For 95% confidence level , z* = 1.96

As, $\sigma$ = 8.265, E = 1

So, $n= (\dfrac{1.96\times8.265}{1})^2 =(16.1994)^2\\\\= 262.42056036\approx263\ \ \ [\text{Rounded to the next integer}]$

Hence, the number of first-year residents she must survey to be 95% confident= 263

7 0

2 years ago

Kobotan [32]

Answer:

h-15=42 ~~~~ Brainliest would be nice :') thank u!

Step-by-step explanation:

8 0

3 years ago