Plz.. find the answer of 7th and 8th question first who answer's these question, I will make him brainliest
Attachments:
Answers
Answered by
1
Answer:
7. Mode:
modal class = 8 - 12
f1 = 70
f0= 60
f2=40
l=8
h=4
mode = l + (f1-f0/2f1-f0-f2)h
=8 +(70-60/2×70-60-4) ×4
= 8+ (10 / 140-100) 4
= 8+(10/40) 4
= 8 + 40/40
=8+1 = 9hr
Median:
n/2= 250/2 = 125
median class = 8-12
f = 70
cf = 105
median = l+ (n/2-cf / f)h
= 8 + (125-105 / 70)4
= 8 + 20/70× 4
=8 +8/7 = 56+8/7 = 64/7
= 9.14hr (approx)
8. total number of cards = 52
a. p(neither king nor queen) = 52-4-4/52= 44/52 = 11/13
b. p(non diamond)= 39/52 = 3/4
c. p( ace of red suit)= 2/52 = 1/26
d.p(queen of spade) = 1/52
Similar questions