The quarterly returns for a group of 72 mutual funds with a mean of 2.6% and a standard deviation of 5.3% can be modeled by a Normal model. Based on the model N(0.026,0.053), what are the cutoff values for the a) highest 30% of these funds? b) lowest 40%? c) middle 60%? d) highest 60%?

From this table, compute the ff: Mean: A. 1.40 B. 1.96 C. 1.55 D. 4.12 E. 4.70 Standard deviation A. 1.40 B. 1.96 C. 1.55 D. 4.12 E. 4.70 *The table below shows the number of goals scored by Team Pinoy in the 20 games of the season.

Compute the mean of the distribution?

A study reveals that 82% relationships end in the first two years. A random sample of 100 newly formed couples isselected.a. What is the probability that the sample proportion is less than 0.80?b. What is the probability that the sample proportion is within ±0.02 of the population proportion?

The number of days ahead of their trip that travelers purchase their airline tickets can be modeled as an exponential distribution with a mean of 12 days. a. Determine the probability that a traveler will purchase their ticket less than 25 days before their trip Answer in exact fraction, or rounded to at least 4 decimal places. b. Determine the 77 percentile number of days by which travellers make an advance purchase of their tickets. Answer in exact fraction, or rounded to at least 4 decimal places. days

1. The amount of time a Tech student spends on Instagram has an approximately exponential distribution with mean 60 minutes. a. What is the probability a randomly selected student spends less than 45 on Instagram? b. Illustrate your answer from a. using the pdf c. Find the cumulative distribution function for the time students spend on Instagram. d. What is the probability a randomly selected student is on Instagram for a time within 2 standard deviation of the mean?

What is the standard deviation of the following investment: Actual Return Probability 5% 40% 45% 10% -12% -5% 15% 20% ○ 4.6% 12.8% 11.0% 9.2%

Suppose that the value of a stock varies each day from $11.82 to $22.17 with a uniform distribution. Find the upper quartile; 25% of all days the stock is above what value? (Enter your answer to the nearest cent.)

In a Normal distribution, the Empirical Rule states that...       ["", "", "", "", ""]  of the data is within 1 standard deviation of the mean,       ["", "", "", "", ""]  of the data is within 2 standard deviation of the mean, and       ["", "", "", "", ""]  of the data is within 3 standard deviation of the mean.

Please answer parts b-d