there are 2.54 cm in an inch .how many centimeters are in 0.75 yards? if rounding is necessary, round to the nearest whole numbe
1 answer:
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(a) True. Suppose A is a not a square matrix, with m rows and n columns. Then A² is not defined, because you can't multiply an m×n matrix by another m×n matrix.
(b) False. As an example, consider the matrices
Then both AB and BA are defined, with
In general, you can multiply any m×n by any n×m matrix.
(c) True. Multiplying a m×n matrix by a n×m matrix always yields a m×m matrix, and multiplying a n×m matrix by a m×n matrix always yields a n×n matrix.
Answer:
a. Graph the relative frequency distribution for these results. What type of graph is ideal?
we must use bar graph
[Graph is attached with the name graph 1]
b.
Toward the Frequency Relative Frequency
volatiles 17 0.566666667
solvent 2 0.066666667
left side 7 0.233333333
right side 4 0.133333333
[Graphs is added in the attachment with the name graph 2]
c.
17/30 = 0.567
d.
se=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.567(1-0.567)}{30}}=0.091
standard error shows the variation in sampling distribution.
e.
The most plausible values for the fraction of dodder seedlings that grow toward the volatiles is:
\hat{p}\pm 2\sqrt{\frac{p(1-p)}{n}}=0.0567\pm 2(0.091)\: \: or\: \: (0.385,0.749)
This does not included the fraction expected (0.25).
