kumiko works at a shop that sells chicken sandwiches. she collects data about a random sample of chicken…

kumiko works at a shop that sells chicken sandwiches. she collects data about a random sample of chicken sandwiches sold at lunch and at dinner. the results are shown in the table. suppose 150 chicken sandwiches are sold at lunch. which is the best estimate of the number of those sandwiches that are spicy? spicy mild lunch 35 15 dinner 20 50 35 sandwiches 50 sandwiches 105 sandwiches 120 sandwiches

kumiko works at a shop that sells chicken sandwiches. she collects data about a random sample of chicken sandwiches sold at lunch and at dinner. the results are shown in the table. suppose 150 chicken sandwiches are sold at lunch. which is the best estimate of the number of those sandwiches that are spicy? spicy mild lunch 35 15 dinner 20 50 35 sandwiches 50 sandwiches 105 sandwiches 120 sandwiches

Answer

Explanation:

Step1: Calculate the proportion of spicy sandwiches at lunch in the sample

The total number of sandwiches sold at lunch in the sample is $35 + 15=50$. The number of spicy sandwiches at lunch in the sample is 35. So the proportion of spicy - lunch sandwiches in the sample is $\frac{35}{50}=\frac{7}{10}$.

Step2: Estimate the number of spicy sandwiches for 150 lunch - sold sandwiches

If 150 chicken sandwiches are sold at lunch, and the proportion of spicy sandwiches in the sample is $\frac{7}{10}$, then the estimated number of spicy sandwiches is $150\times\frac{7}{10}=105$.

Answer:

105 sandwiches