Answer:
Hence, the probability that seven or more of them used their phones for guidance on purchasing decisions is 0.7887
Step-by-step explanation:
We are given the following information in the question:
We treat people using phones in the store for guidance as a success.
P(People use phone for guidance) = 57% = 0.57
Then the number of people follows a binomial distribution, where
Formula:

where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 14 and x = 7
We have to evaluate:

Hence, the probability that seven or more of them used their phones for guidance on purchasing decisions is 0.7887
Answer:
Step-by-step explanation:
It’s c
Answer: (<em>Draw a circle and a point outside the circle.)</em>
Step-by-step explanation:
Step 1: Draw a circle and a point outside the circle.
Step 2: Draw line OP, to join the center O to point P.
Step 3: Construct the perpendicular bisector of OP.
Step 4: Draw two arcs on the circumference of the circle.
Step 5: Draw tangent lines JP and KP.
Proof:
Could you maybe add more info? like a story or something