Each ice cream cone cost $2.26 before tax. If it is 17 cents tax for each cone and there are 6 cones, you multiply the tax with the number of cones, $1.02. Then you subtract that from the total cost to take away tax, $13.56. Lastly, you divide the price without tax by the number of ice cream cones so you know how much each one costs, $2.26, and there you go!
Y = 0.213x – 352.0 <span> represents this linear model shown in the data table. Plug in the values of x into the equation for a double check. Let's try 1980.
</span><span>y = 0.213(1980) – 352.0 </span>y = 69.74 which is closest to the 70.1 whereas other options do not satisfy the condition.
<span>1. </span>When given a raw score, it must be converted
into a z-score (standard score). Raw scores cannot be placed on a normal
distribution curve because they do not have the same means and standard
deviations, but when it is converted into a z-score, the number of standard
deviations above or below the population mean can be measured. The z-scores on
the center are average, the scores on the left are lower than average and the
scores on the right are higher than average.
<span>2. </span>A z-score is a standard score which can be
placed on a normal distribution curve. A z-score indicates the distance of the
standard deviations from the mean (center of the curve).