Recent survey by Austin Corp Inc. concludes that only 30% of defective items sold on a Frenzy Friday are returned by the customers. If 5 defective items are sold by the shop, calculate (a) The probability that all 5 items will not be returned by the customer.

(b) The probability that more than one items will be returned by the customer.

(c) The mean number of items returned by the customer.

The conversion factor relating feet to meters is 1 ft=0.305 m. keep in mind that when using conversion factors, you want to make sure that like units cancel leaving you with the units you need. you have been told that a certain house is 164 m2 in area. how much is this in square feet?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

What is the circumference of a circle with an area of 50.24 cm²?