LOOK AT PHOTO. PLEASE HELP!!
2 answers:
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Answer:
0.9954
Step-by-step explanation:
For normal distribution z score is
=
Population proportion (p) = 0.060
Sample size (n) = 285
the standard error of proportion is
=
After putting the values into the above formula we will get
= 0.0141
Probability as the sample proportion will different from the population proportion by lower than the 4% that is
Probability = P(0.02<X<0.1) = P(-2.84<Z<2.84) = 0.9977 - 0.0023
= 0.9954
Answer:
x = 11.4
Step-by-step explanation:
14.12 = ( 3.6x - 12.8 )
Rewrite so that the equation is entirely in decimals;
14.12 = 0.5( 3.6x - 12.8 )
Distribute;
14.12 = 1.8x - 6.4
Inverse operations;
14.12 = 1.8x - 6.4
+6.4 +6.4
20.52 = 1.8x
/1.8 /1.8
11.4 = x