Step-by-step explanation:
8.9x-5 and -6.8x+8
8.9-6.8 + -5+8
2.1x+3
Answer:
1,
,
.
Step-by-step explanation:
probability = 
Total number of persons in the party = n
a) Pr ( every person gets their phone back) = Pr (each person picks his phone ) multiplied by number of person
=
× n = 1.
No of first m persons to pick = m
No of last m persons to pick = 1 - m
b) Pr (first m persons to pick each gets their phones back) = 
c) Pr( first m persons get a phone belonging to last m persons) = 
The answer is 7, 7 cds were purchased, hope this helps have a great day!
Answer:
3.8
Step-by-step explanation:
p = %/100 x 166
2.3/100 x 166
0.023 x 166
3.818
3.8
Answer:
a) uniform
b) 1/2
c) 1/1000
Step-by-step explanation:
a) "numbers with equal probability" have a uniform distribution.
__
b) Even numbers make up 1/2 of all numbers.
__
c) There are ten such numbers in the range, so the probability is ...
10/10000 = 1/1000