30. The box-and-whisker plot shows the average temperatures in Tucson, Arizona in December. (1 point) Which statement about the temperatures in Tucson must be true?

About half of the days in December had average temperatures above 60 degrees.

About half of the days in December had average temperatures between 52 and 60 degrees.

The coldest day in December was 52 degrees.

The hottest day in December was 65 degrees.

About half of the days in December has average tempetare between 52 and 60 degrees

(SEE THE ATTACHMENT)

Step-by-step explanation:

See the box-and-whisker plot.

Median = 58

1st quartile (which is the median of all value below 58) = 52

2nd quartile (which is the median of all value above 58) = 60

From 1st quartile to median = Almost quarter of the values

From median to 2nd quartile = Almost quarter of the values

From 1st quatile to 2nd quartile = Almost half of the values

So

1st statement is wrong

2nd statement is correct

3rd statement is wrong (Coldest day was 49 degrees)

4rth statement is wrong (Hottest day was 68 degrees)

 3.75 per shift

Step-by-step explanation:

Given : The amount earned by laundry = 12 dollars / hour

Since 1 dollar = 4 quarters.

Then, amount earned per hour= quarters per hour.

    [By unitary method]

The time period for each shift = 75 minutes

Since 1 hour = 60 minutes

Then , 1 minute = hours     [By unitary method]

Now, 75 minutes = hours

Now, the total amount earned from each shift will be:-

quarters

Now , the cost of laundry= 12 quarters/load

The cost of load after increment = 16 quarters

Then, the number of loads can be washed :-

Hence, number of loads of laundry = 3.75 per shift