Compute the sample standard deviation of the data set 6,4,2,1,4,1.

Essentially, any non-repeating number found between 31.5 and 31.6 would suffice.

Examples include: 31.51, 31.52, 31.568, 31.599

I suggest 31.55 since it’s straightforward and can be expressed as the fraction: 361/20

Answer:

• The profit can be expressed as 70x + 50
• If 240 phones are sold, the profit amounts to $16,850

Detailed explanation:

The revenue function R(x) is provided as

The cost function C(x) is given as

Profit is calculated by subtracting cost from revenue, expressed as Profit = Revenue − Cost

We substitute the given revenue and cost functions into this formula.

Denote the profit function as P(x).

Therefore, the profit function formula simplifies to 70x + 50

Since x denotes the quantity of phones sold, to find the profit when 240 phones are sold, we substitute x = 240 into the profit expression above.

Hence, selling 240 phones yields a profit of $16,850

Answer:

The proportion of goats at fair Y exceeds that of goats at fair X.

Step-by-step explanation:

From the bar chart,  we see there were 100 goats at both fairs X and Y.

Calculating the percentage of goats at each fair we find:

Fair X = 100/645 * 100 = 15.5%

Fair Y = 100/590 * 100 = 16.9%

This indicates that fair Y had a higher percentage of goats compared to fair X.

Answer:

Refer to the solution provided.

Step-by-step explanation: