According to a recent survey of first-year high school students, 28% chew gum daily. The students were also asked if they had recently gotten a cavity filled at the dentist. Of the 47% of first-year students who responded that they had a cavity recently filled, only 39% chewed gum daily. Is chewing gum independent of having a cavity filled recently?

Yes, P(Gum) = P(Gum|Cavity).
Yes, P(Gum) = P(Cavity|Gum).
No, P(Gum) ≠ P(Gum|Cavity).
No, P(Gum) ≠ P(Cavity|Gum).

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.

answer is 8 r5

step-by-step explanation:

=

x=0.8898305 is the answer to that equation