Envious1552
22.01.2022 •
Mathematics
Strands of copper wire from a manufacturer are analyzed for strength and conductivity. The results from 100 strands are as follows:
Strength Strength
High Low
high conductivity 74 8
low conductivity 15 3
Required:
a. If a strand is randomly selected, what is the probability that its conductivity is high and its strength is high?
b. If a stand is randomly selected, what is the probabilitythat its conductivity is low or strength is low?
c. Consider the event that a strand hs low conductivity andthe event that the strand has a low strength. Are these tow eventsmutually exclusive?
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Ответ:
56
Step-by-step explanation:
Zoe and Hannah shared tips in the ratio
3:7
Last week Zoe received $24
Hence the amount received by Hannah can be calculated as follows
3/7= 24/x
168= 3x
x= 168/3
= 56
Hence Hannah received €56