Welllllllllll, not really! Accurate and exact are in the same league. When you are referring to variable data there is no such thing as exact. Is 100.01 pounds exactly 100 pounds? No. How about 100.0000001 pounds? Is that exactly 100 pounds? In an absolute sense, no. In a practical sense, yes. But that is only because the measurement system has been determined to provide readings within +/- 0.00000005 of the real weight, whatever that actually is. In other words, the scale is fairly accurate. But it can never be accurate unless we define accurate as giving a measurement within a + or - range of the absolute.
Exact, and also accurate, apply only to systems that count discrete items, such as how many pennies in a bank bag. If the system yields a count that matches the number of pennies to the penny (pun intended

) every time it counts, it is accurate. If it misses the count by one or two pennies out of say, 1000, every once in awhile, it is fairly accurate if counting Girl Scout cookie sale proceeds but not if it's used in a bank!
This may seem like much ado about nothing, but it really isn't. Understanding exactness and accuracy are at the heart of controlling quality in a manufacturing process. It's an attempt to come up with a meaningful answer to the question, "How round is round?", you know, like in the case of Kenda tires, or for that matter any tire! :thumbup: Or, in the case of bores in the Rotax engine, what size is a 20 mm hole? One thing I can guarantee you, it is not 20. followed by an endless string of zeros.