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3 years ago

Please help me with this math question!

Mathematics

2 answers:

nlexa [21]3 years ago

8 0

If the temperature drops 35 degrees everyday for 7 days, you would have to add -35 + -35 + -35 +-35 + -35 + -35 + -35, since each day it drops the temperature would be -35, now the answer would be -245.

Hopefully this helped. :)

tester [92]3 years ago

6 0

If over 7 days the temp dropped by 35 degrees it would be 35 divided by 7. (because it say total drop in temp which means after 7 days it was 35 degrees colder). so the answer would be, "the temperature dropped 5 degrees every day"

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Binomial probability formula :-

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Given : The probability that the adults follow more than one game = 0.30

Then , q= 1-p = 1-0.30=0.70

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$P(X\leq4)=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)\\\\=^{15}C_{0}\ (0.30)^0(0.70)^{15}+^{15}C_{1}\ (0.30)^1(0.70)^{14}+^{15}C_{2}\ (0.30)^2(0.70)^{13}+^{15}C_{3}\ (0.30)^3(0.70)^{12}+^{15}C_{4}\ (0.30)^4(0.70)^{11}\\\\=(0.30)^0(0.70)^{15}+15(0.30)^1(0.70)^{14}+105(0.30)^2(0.70)^{13}+455(0.30)^3(0.70)^{12}+1365(0.30)^4(0.70)^{11}\\\\=0.515491059227\approx0.5$

Hence, the probability rounded to the nearest tenth that fewer than 4 of them will say that football is their favorite sport =0.5

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