Will give

1. give an example of an event that is certain and an event that is impossible. what are the probabilities for each event?

2. thomas rolled a six sided die 100 times. he recorded his results as odd or even. the number of odds were 42 and the number of evens were 58. he thought he would get 50 heads and 50 tails. explain to thomas why the experimental probability may be different from the theoretical probability.

Step-by-step explanation:

1. An event that is certain is something that will definitely happen, such as the sun will rise tomorrow, or when rolling a six sided die, it will land on 1 - 6.

Something impossible, includes events that will never happen, such as pig will fly, or when rolling a six sided die, it will land on 7.

2. The experimental probability may be different to the theoretical probability as theoretical probability is only theory, and when trying something out in real life, there is a high chance that it will be different.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

a. she will receive a refund of $278.

step-by-step explanation: