5.30 plus 1.29 plus 0.53 plus 0.68 equal 7.80$ times 0.5% tax 8.19$
Answer:
No one of the mentioned
The interval is:
[ 1706.7 : 1917.3] to find 95.5 % of all values
Step-by-step explanation:
We deal with a Normal Distribution, : μ = 1812 and σ = 105.3
We know centered at mean value and at both sides at values σ/2 we will find 68.3 % of all values . In fact σ/2 to the left and σ/2 to the right means an interval μ + σ .
[μ + σ/2 : μ - σ/2 ] will lie 68.3 % of values
Following the same reasoning but now for a wider interval
[μ + σ : μ - σ ] We will find 95.5 % of all values in our case that interval is:
1812 + 105,3 = 1917.3
1812 - 105,3 = 1706.7
[ 1706.7 : 1917.3] will be the interval to find 95.5 % of all values
The total price = how much food he buys * the price per kilogram
t = pk
Division property of equality. Because you need to divide both sides by 2