Answer:
a. The expected number of adults who smoke is 70
b. The probability that fewer than 20 smoke is 5.7%
c. The probability that from 45 to 80 smoke is the 12,8% to 22,8%
d. The probability that 70 or more smoke is the 20%
Explanation:
a. 350 is the 100% so you have to do a equation
350 -100%
X - 20% = 20% x 350/100 = 70 adults
b. 350 -100%
20 - X = 20% x 100%/350= 5.7% probability
c. 350 - 100%
45 - X = 45 x 100%/350= 12.8% probability
350 - 100%
80 - X = 80 x 100%/350= 22.8% probability
d. 350 - 100%
70 - X = 70 x 100%/350= 20% probability
<span>Sometimes the gum tissues just don’t like the proximity of the braces and react by swelling and/or overgrowing.
Things that can help are:
Keeping some pressure on the gums using a warm or cool pack.
Use a salt water solution to clean and help heal the gums
Gently brush/floss
If this doesn't help, get ahold of your dentist and ask him/her for some more ideas or oral ointments to apply to the sensitive gum areas.</span>
The first question's answer is A Cultural
I believe the answer to question 2 is
d. 800 calories
this would include soft drinks and other liquid beverages that are not 100% juice.