For part (A) am I not suppose to divide 11/70 =.15 Also for part (B) am I not su

Question

For part (A) am I not suppose to divide 11/70 =.15

Also for part (B) am I not suppose to divide 37/70 = .52

I tried rounding them up (.16 and .53) but they were still incorrect?

My Notes Ask Your Teacher It probably wouldnt surprisc you to l now that Valcndnc's Cov moons big busines erfionats cwc ry stores and restaurants. But would t surpris ou to icnow that t is also a ba day for pct oto ez? In January of coran Yaar, retail rcdcration conducted survey of consumers who were selected in a way that the federation believed would produce a representative sample of the U.S. population. One question in the survey asked, o yo plan to spend meney on a Valentine's Day gift for vour pet this year?" Iwenty-two of those surveyed sdid they did 37 bdid they dd not, dnd he rns""ng 11 pevple did they re undecided The fede dion hoped to leern about the, proportion of U adults who planned to buy d gin, ro ther pe fo Valentines Day, Round you' d is to two, deci, dl places a) calculate the prohability. The probability that a randomly selected individual from this poll did not say he or she was undecided on whether to spend money on a Valentine's Day aift for his or her pet this year is 15 b) What is the probatility that a randomly selected person from this survey did t say he or she did nat plan to spend money on their pet for Valentine's Day this vear? 57 Need Help?ad

Explanation / Answer

Given that from 70 people studied in USA.

22 customer said they spend their money on pets on valentine.

37 people said the did not spend any money on pets.

And 11 people said that they were undecided.

Hence according to question

A) The probability of people who did not said that they are undecided means since 11 people were undecided hence 70-11 =59 people didnt said they are undecided., Hence Probability as 59/70= 0.84

B) Similarly here the no people who did not say that they did not plan to s0end are 70 -37= 33

hence probabilityP=33/70= 0.47

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