Answer:
To know if the equation is true, you need to write it down on a piece of paper and see if you get the results.
Step-by-step explanation:
Answer:
0.02651
Step-by-step explanation:
P(all 5 are boys) =
= 0.02651 ( wow low)
So lets do it like this:
z = (X-Mean)/SD
<span>z1 = (8-12)/2 = - 2 </span>
<span>z2 = (16-12)/2 = + 2 </span>
<span>According to the Empirical Rule 68-95-99.7 </span>
<span>Mean more or less 2SD covers 95% of the values </span>
So t<span>he percentage of data points falling between 8 and 16 = 95%
</span>I hope this can help
Answer:
32
Step-by-step explanation:
you basically want to get x on it's own to find out what it equals so,
multiply both sides by 9:
x+2 = 45
take away 2 from both sides:
x = 43
