With the decimal points, the first digit after the decimal starts out as tenths, and numbers above 5 are rounded up, so keeping those 2 facts in mind the answer would be
11.36
Answer:
l think they meet when collecting like terms.maybe like this
y=4x8
y=3x+1
=(4×+3x)+1+8
The confidence interval is from 9.81 to 10.19.
We first find the mean of the data:
<span>(9.8+10.2+10.4+9.8+10.0+10.2+9.6)/7 = 10
Next we find the standard deviation:
</span>σ=√([<span>(9.8-10)^2+(10.2-10)^2+(10.4-10)^2+(9.8-10)^2+(10-10)^2+(10.2-10)^2+(9.6-10)^2]/7) = 0.262
The z-score for 95% confidence is found by
1-0.95 = 0.05; 0.05/2 = 0.025; from the z-table, it is 1.96.
The confidence interval is calculated using
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7*11=77 because 7 and 11 are 4 apart Enjoy!=)