please help for math

[stray blade]

please ??

[warm badger]

cant read this, English please..!

[stray blade]

1. Here is the distribution of marks in an English test. So the first quartile Q1 is the...

2 Here is a screenshot of a calculator. The rounding to the hundredth of the standard deviation of this series is..

3 Here are the sizes, in cm, of 25 young wheat plants 10 days after germination. The proportion of plants that measure exactly 18 cm is...

4 The standard deviation σ of this series is...

5 Victor recorded the number of visitors to his blog every day for a week. There would have been the same number of visitors to Victor's blog during that week if there had been...

6 Here are the results of a telephone survey on the number of rooms per dwelling in a building. The total squad of this series is...

7 Here are the results of a telephone survey on the number of rooms per dwelling in a building. The total squad of this series is...

8 During a quality control, the number of wooden dowels in 40 bags was counted. The number of bags containing at most 30 pegs is...

9 A statistical series has mean m=8 and standard deviation σ=2.2.
Then the interval [m-2σ;m+2σ] is the interval...

10 The median of the series opposite is ...

@warm badger