NEED HELP ASAP! :((

Mathematics

2 answers:

adell [148]3 years ago

6 0

Line graph or bar graph because it shows you what day of the week you sell more lemonade.

icang [17]3 years ago

6 0

A line graph would show the data over time. I would plot the days along the horizontal axis and each daily profit at points on the vertical axis. I would connect the points with lines. If her profit is increasing each day, I would expect the line height to increase over time.

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Let x denote the courtship time for a randomly selected female–male pair of mating scorpion flies (time from the beginning of in

gavmur [86]

Complete Question:

a) Is it plausible that X is normally distributed?

b) For a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 100 min and 125 min?

Answer:

a) It is plausible that X is normally distributed

b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269

Step-by-step explanation:

a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.

b) Probability that the sample mean courtship time is between 100 min and 125 min

$\mu = 120\\n = 50$