Mathematics, 01.04.2020 12:31 bellabarfield4286
20 Dan observes that
10 • 10 = 6 = 2
He says, "I think that if we are dividing
think that if we are dividing a fraction by a fraction with the same denominator, then we can just
divide the numerators."
Is Dan's conjecture true for all fractions? Explain your reasoning.
Answers: 1
Mathematics, 21.06.2019 17:00
Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²
Answers: 1
Mathematics, 21.06.2019 17:00
In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:
Answers: 3
Mathematics, 21.06.2019 18:20
Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?
Answers: 2
20 Dan observes that
10 • 10 = 6 = 2
He says, "I think that if we are dividing
thi...
10 • 10 = 6 = 2
He says, "I think that if we are dividing
thi...
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