Q= 9 D=3 N=5 those are the answers
Question: Please help lily team won 8 out of 12 games.At that rate,how many games will her team win if it plays 21 games?The ratio is now: 8 : 12 = X : 21, where x is the unknown value of win they have and 21 is the total number of games they played=> 8 : 12 = x : 21=> 8 * 21 = 168 / 12 = 14Thus, the new ratio is 8 : 12 and 14 : 21they will be winning 14 games out of 21 plays<span>
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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
3 tests at 75% each = 3 x 75 = 225 total points
First two tests = 79 + 84 = 163
Third test needs to be at least: 225 - 163 = 62%
So any score less than 62 would get you into trouble.
Yes it is right because 497/8 and 491 /8 if u add it is 989/6