Question

a local refrigerator repair shop keeps records of complaints received from its customers. complaints for last month are listed in the following table. what percent of the complaints are due to the categories runs constantly or noisy or loud? round your answer to two decimal places, if necessary.
customer complaints
type of complaint | frequency
not cold enough | 36
water dispenser not working | 6
ice maker not working | 34
ice dispenser not working | 21
noisy or loud | 17
leaking water | 32
freezing food | 20
ice-maker overflowing | 18
light not working | 33
runs constantly | 17

Explanation:

Step1: Sum target complaint frequencies

Add frequencies for "Runs constantly", "Noisy or loud":
$17 + 17 = 34$

Step2: Calculate total complaints

Sum all frequency values:
$36 + 6 + 34 + 21 + 17 + 32 + 20 + 18 + 33 + 17 = 234$

Step3: Compute percentage

Divide target sum by total, multiply by 100:
$\frac{34}{234} \times 100 \approx 14.53$

Answer:

14.53%