Ineed it to answer for my assignment plz

Step-by-step explanation:

The monthly rents paid by the 10 people are

845, 875, 890,900,960, 965, 990, 1015, 1045, 1065.

The mean rent is determined by

Sum of rent paid/ total number of people that paid rent.

Mean = (845+875+890+900+960+965+990+1015+1045+1065) /10 = 9550/10 = 955

Median = (960+965)/2 =1925/2 = 962.5

Suppose that one of the people moves, her rent changes from 1065 to 915, the mean becomes

(845+875+890+900+ 915 + 960+965+990+1015+1045)/10 =9400/10 = 940

The median is (915 +960)/2 =1875/2 = 937.5

Therefore,

a) the mean decreases by

955 - 940 = 15

b) the median decreases by

962.5 - 937.5= 25

answer: c i think

step-by-step explanation:

< 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⭐