Lowe's sells a very popular remote control operated ceiling fan, the Lantern Bay 54-in Matte Black LED Indoor/Outdoor Ceiling fan, with most of the sales being made in the summer months. Lowes makes a one-time purchase of these fans prior to each summer season at a cost of $40 each and sells each Lantern Bay fan for $200. Any fans unsold at the end of the summer season are marked down to $50 and sold in a special fall sale. By experience, all marked-down fans are sold. The following is the number of Lantern Bay fans sold during the last past 10 summers: 30, 50, 30, 60, 10, 40, 30, 30, 20, 40. 1. Estimate the mean and the variance of the demand for Lantern Bay fans each summer. 2. Assume that the demand for Lantern Bay fans each summer follow a normal distribution, with mean and variance gi

$\frac{20b}{{\left(4b^3\right)}^3}$

Which operation could we perform in order to find the number of milliseconds in a year??
${\displaystyle 60\cdot 60\cdot 24\cdot 7\cdot 365}$
${\displaystyle 1000\cdot 60\cdot 60\cdot 24\cdot 365}$
${\displaystyle 24\cdot 60\cdot 100\cdot 7\cdot 52}$
${\displaystyle 1000\cdot 60\cdot 24\cdot 7\cdot 52?}$

Tell about the meaning of Sxx and Sxy in simple linear regression,, especially the meaning of those formulas

Is the number 7356 divisible by 12? Also find the remainder.
A) No
B) 0
C) Yes
D) 6

What is a positive integer?

Determine the value of k if the remainder is 3 given ${\displaystyle (x^3+k{x}^2+x+5)÷(x+2)}$

Is $41$ a prime number?

What is the square root of $98$?

Is the sum of two prime numbers is always even?

149600000000 is equal to
A)$1.496\times <!--\; \times \; -->{10}^{11}$
B)$1.496\times <!--\; \times \; -->{10}^{10}$
C)$1.496\times <!--\; \times \; -->{10}^{12}$
D)$1.496\times <!--\; \times \; -->{10}^8$

Find the value of$\log 1$ to the base $3$ ?

What is the square root of 3 divided by 2 .

write ${\displaystyle \sqrt[5]{{\left(7x\right)}^4}}$ as an equivalent expression using a fractional exponent.

simplify ${\displaystyle \sqrt{125n}}$

What is the square root of ${\displaystyle \frac{144}{169}}$